* [allisonhenderson-xfs_work:delayed_attrs_v22_extended 28/32] fs/xfs/xfs_inode.c:3287:3: warning: Value stored to 'error' is never read [clang-analyzer-deadcode.DeadStores]
[not found] <202107280442.uDSMSKAb-lkp@intel.com>
@ 2021-07-28 0:40 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2021-07-28 0:40 UTC (permalink / raw)
To: Allison Henderson; +Cc: clang-built-linux, kbuild-all, LKML
[-- Attachment #1: Type: text/plain, Size: 48660 bytes --]
tree: https://github.com/allisonhenderson/xfs_work.git
delayed_attrs_v22_extended
head: aff89515c2d9aca9b24ac0296f3806af62cd9206
commit: 3818584f03ce2d5c1310199a6466aafdf22c8256 [28/32] xfs: Add parent
pointers to rename
:::::: branch date: 18 hours ago
:::::: commit date: 18 hours ago
config: x86_64-randconfig-c001-20210727 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project
c658b472f3e61e1818e1909bf02f3d65470018a5)
reproduce (this is a W=1 build):
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross
-O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
#
https://github.com/allisonhenderson/xfs_work/commit/3818584f03ce2d5c1310199a6466aafdf22c8256
git remote add allisonhenderson-xfs_work
https://github.com/allisonhenderson/xfs_work.git
git fetch --no-tags allisonhenderson-xfs_work
delayed_attrs_v22_extended
git checkout 3818584f03ce2d5c1310199a6466aafdf22c8256
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross
ARCH=x86_64 clang-analyzer
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
clang-analyzer warnings: (new ones prefixed by >>)
^
include/linux/kernel.h:495:61: note: expanded from macro 'container_of'
BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member)
&& \
^
drivers/md/dm-zoned-target.c:481:29: note: Taking false branch
struct dm_chunk_work *cw = container_of(work, struct
dm_chunk_work, work);
^
include/linux/kernel.h:495:2: note: expanded from macro 'container_of'
BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member)
&& \
^
include/linux/build_bug.h:39:37: note: expanded from macro
'BUILD_BUG_ON_MSG'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^
include/linux/compiler_types.h:328:2: note: expanded from macro
'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_,
__COUNTER__)
^
include/linux/compiler_types.h:316:2: note: expanded from macro
'_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
^
include/linux/compiler_types.h:308:3: note: expanded from macro
'__compiletime_assert'
if (!(condition))
\
^
drivers/md/dm-zoned-target.c:481:29: note: Loop condition is false.
Exiting loop
struct dm_chunk_work *cw = container_of(work, struct
dm_chunk_work, work);
^
include/linux/kernel.h:495:2: note: expanded from macro 'container_of'
BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member)
&& \
^
include/linux/build_bug.h:39:37: note: expanded from macro
'BUILD_BUG_ON_MSG'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^
include/linux/compiler_types.h:328:2: note: expanded from macro
'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_,
__COUNTER__)
^
include/linux/compiler_types.h:316:2: note: expanded from macro
'_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
^
include/linux/compiler_types.h:306:2: note: expanded from macro
'__compiletime_assert'
do {
\
^
drivers/md/dm-zoned-target.c:488:2: note: Loop condition is true.
Entering loop body
while ((bio = bio_list_pop(&cw->bio_list))) {
^
drivers/md/dm-zoned-target.c:492:3: note: Calling 'dmz_put_chunk_work'
dmz_put_chunk_work(cw);
^~~~~~~~~~~~~~~~~~~~~~
drivers/md/dm-zoned-target.c:469:6: note: Assuming the condition is true
if (refcount_dec_and_test(&cw->refcount)) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/md/dm-zoned-target.c:469:2: note: Taking true branch
if (refcount_dec_and_test(&cw->refcount)) {
^
drivers/md/dm-zoned-target.c:470:3: note: Taking false branch
WARN_ON(!bio_list_empty(&cw->bio_list));
^
include/asm-generic/bug.h:122:2: note: expanded from macro 'WARN_ON'
if (unlikely(__ret_warn_on))
\
^
drivers/md/dm-zoned-target.c:472:3: note: Memory is released
kfree(cw);
^~~~~~~~~
drivers/md/dm-zoned-target.c:492:3: note: Returning; memory was
released via 1st parameter
dmz_put_chunk_work(cw);
^~~~~~~~~~~~~~~~~~~~~~
drivers/md/dm-zoned-target.c:488:16: note: Calling 'bio_list_pop'
while ((bio = bio_list_pop(&cw->bio_list))) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bio.h:657:20: note: Use of memory after it is freed
struct bio *bio = bl->head;
^~~~~~~~
Suppressed 6 warnings (6 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
12 warnings generated.
fs/xfs/xfs_iops.c:704:11: warning: Value stored to 'uid' during its
initialization is never read [clang-analyzer-deadcode.DeadStores]
kuid_t uid = GLOBAL_ROOT_UID, iuid =
GLOBAL_ROOT_UID;
^~~
fs/xfs/xfs_iops.c:704:11: note: Value stored to 'uid' during its
initialization is never read
kuid_t uid = GLOBAL_ROOT_UID, iuid =
GLOBAL_ROOT_UID;
^~~
fs/xfs/xfs_iops.c:704:34: warning: Value stored to 'iuid' during its
initialization is never read [clang-analyzer-deadcode.DeadStores]
kuid_t uid = GLOBAL_ROOT_UID, iuid =
GLOBAL_ROOT_UID;
^~~~
fs/xfs/xfs_iops.c:704:34: note: Value stored to 'iuid' during its
initialization is never read
kuid_t uid = GLOBAL_ROOT_UID, iuid =
GLOBAL_ROOT_UID;
^~~~
fs/xfs/xfs_iops.c:705:11: warning: Value stored to 'gid' during its
initialization is never read [clang-analyzer-deadcode.DeadStores]
kgid_t gid = GLOBAL_ROOT_GID, igid =
GLOBAL_ROOT_GID;
^~~
fs/xfs/xfs_iops.c:705:11: note: Value stored to 'gid' during its
initialization is never read
kgid_t gid = GLOBAL_ROOT_GID, igid =
GLOBAL_ROOT_GID;
^~~
fs/xfs/xfs_iops.c:705:34: warning: Value stored to 'igid' during its
initialization is never read [clang-analyzer-deadcode.DeadStores]
kgid_t gid = GLOBAL_ROOT_GID, igid =
GLOBAL_ROOT_GID;
^~~~
fs/xfs/xfs_iops.c:705:34: note: Value stored to 'igid' during its
initialization is never read
kgid_t gid = GLOBAL_ROOT_GID, igid =
GLOBAL_ROOT_GID;
^~~~
Suppressed 8 warnings (8 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
9 warnings generated.
>> fs/xfs/xfs_inode.c:3287:3: warning: Value stored to 'error' is never read [clang-analyzer-deadcode.DeadStores]
error = xfs_cross_rename(tp, src_dp, src_name, src_ip,
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/xfs/xfs_inode.c:3287:3: note: Value stored to 'error' is never read
error = xfs_cross_rename(tp, src_dp, src_name, src_ip,
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Suppressed 8 warnings (8 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
8 warnings generated.
Suppressed 8 warnings (8 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
8 warnings generated.
Suppressed 8 warnings (8 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
8 warnings generated.
Suppressed 8 warnings (8 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
8 warnings generated.
Suppressed 8 warnings (8 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
8 warnings generated.
Suppressed 8 warnings (8 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
5 warnings generated.
Suppressed 5 warnings (5 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
8 warnings generated.
drivers/input/touchscreen/edt-ft5x06.c:705:21: warning: Value stored
to 'client' during its initialization is never read
[clang-analyzer-deadcode.DeadStores]
struct i2c_client *client = tsdata->client;
^~~~~~ ~~~~~~~~~~~~~~
drivers/input/touchscreen/edt-ft5x06.c:705:21: note: Value stored to
'client' during its initialization is never read
struct i2c_client *client = tsdata->client;
^~~~~~ ~~~~~~~~~~~~~~
Suppressed 7 warnings (7 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
5 warnings generated.
Suppressed 5 warnings (5 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
7 warnings generated.
Suppressed 7 warnings (7 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
5 warnings generated.
Suppressed 5 warnings (5 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
7 warnings generated.
Suppressed 7 warnings (7 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
7 warnings generated.
Suppressed 7 warnings (7 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
6 warnings generated.
Suppressed 6 warnings (6 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
5 warnings generated.
Suppressed 5 warnings (5 in non-user code).
Use -header-filter=.* to display errors from all non-system headers.
Use -system-headers to display errors from system headers as well.
6 warnings generated.
drivers/md/dm-snap-persistent.c:632:6: warning: Branch condition
evaluates to a garbage value [clang-analyzer-core.uninitialized.Branch]
if (new_snapshot) {
^~~~~~~~~~~~
drivers/md/dm-snap-persistent.c:609:9: note: 'new_snapshot' declared
without an initial value
int r, new_snapshot;
^~~~~~~~~~~~
drivers/md/dm-snap-persistent.c:615:6: note: Calling 'read_header'
r = read_header(ps, &new_snapshot);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/md/dm-snap-persistent.c:315:6: note: Assuming field
'chunk_size' is not equal to 0
if (!ps->store->chunk_size) {
^~~~~~~~~~~~~~~~~~~~~~
drivers/md/dm-snap-persistent.c:315:2: note: Taking false branch
if (!ps->store->chunk_size) {
^
drivers/md/dm-snap-persistent.c:325:6: note: Calling 'IS_ERR'
if (IS_ERR(ps->io_client))
^~~~~~~~~~~~~~~~~~~~~
include/linux/err.h:36:9: note: Assuming the condition is true
return IS_ERR_VALUE((unsigned long)ptr);
^
include/linux/err.h:22:34: note: expanded from macro 'IS_ERR_VALUE'
#define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >=
(unsigned long)-MAX_ERRNO)
~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:48:41: note: expanded from macro 'unlikely'
# define unlikely(x) (__branch_check__(x, 0,
__builtin_constant_p(x)))
~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:33:34: note: expanded from macro
'__branch_check__'
______r = __builtin_expect(!!(x), expect);
\
^
include/linux/err.h:36:2: note: Returning the value 1, which
participates in a condition later
return IS_ERR_VALUE((unsigned long)ptr);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/md/dm-snap-persistent.c:325:6: note: Returning from 'IS_ERR'
if (IS_ERR(ps->io_client))
^~~~~~~~~~~~~~~~~~~~~
drivers/md/dm-snap-persistent.c:325:2: note: Taking true branch
if (IS_ERR(ps->io_client))
^
drivers/md/dm-snap-persistent.c:326:3: note: Returning without
writing to 'ps->callbacks', which participates in a condition later
return PTR_ERR(ps->io_client);
^
drivers/md/dm-snap-persistent.c:326:3: note: Returning without
writing to '*new_snapshot'
drivers/md/dm-snap-persistent.c:326:3: note: Returning value, which
participates in a condition later
vim +/error +3287 fs/xfs/xfs_inode.c
7dcf5c3e4527cf Dave Chinner 2015-03-25 3155 f6bba2017afb3b Dave
Chinner 2013-08-12 3156 /*
f6bba2017afb3b Dave Chinner 2013-08-12 3157 * xfs_rename
f6bba2017afb3b Dave Chinner 2013-08-12 3158 */
f6bba2017afb3b Dave Chinner 2013-08-12 3159 int
f6bba2017afb3b Dave Chinner 2013-08-12 3160 xfs_rename(
f736d93d76d3e9 Christoph Hellwig 2021-01-21 3161 struct
user_namespace *mnt_userns,
7dcf5c3e4527cf Dave Chinner 2015-03-25 3162 struct xfs_inode
*src_dp,
f6bba2017afb3b Dave Chinner 2013-08-12 3163 struct xfs_name
*src_name,
7dcf5c3e4527cf Dave Chinner 2015-03-25 3164 struct xfs_inode
*src_ip,
7dcf5c3e4527cf Dave Chinner 2015-03-25 3165 struct xfs_inode
*target_dp,
f6bba2017afb3b Dave Chinner 2013-08-12 3166 struct xfs_name
*target_name,
7dcf5c3e4527cf Dave Chinner 2015-03-25 3167 struct xfs_inode
*target_ip,
d31a1825450062 Carlos Maiolino 2014-12-24 3168 unsigned int flags)
f6bba2017afb3b Dave Chinner 2013-08-12 3169 {
7dcf5c3e4527cf Dave Chinner 2015-03-25 3170 struct xfs_mount
*mp = src_dp->i_mount;
7dcf5c3e4527cf Dave Chinner 2015-03-25 3171 struct xfs_trans *tp;
7dcf5c3e4527cf Dave Chinner 2015-03-25 3172 struct xfs_inode
*wip = NULL; /* whiteout inode */
7dcf5c3e4527cf Dave Chinner 2015-03-25 3173 struct xfs_inode
*inodes[__XFS_SORT_INODES];
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3174 int i;
95afcf5c7bca93 Dave Chinner 2015-03-25 3175 int num_inodes =
__XFS_SORT_INODES;
2b93681f593577 Dave Chinner 2015-03-25 3176 bool new_parent =
(src_dp != target_dp);
c19b3b05ae440d Dave Chinner 2016-02-09 3177 bool
src_is_directory = S_ISDIR(VFS_I(src_ip)->i_mode);
f6bba2017afb3b Dave Chinner 2013-08-12 3178 int spaceres;
7dcf5c3e4527cf Dave Chinner 2015-03-25 3179 int error;
3818584f03ce2d Allison Henderson 2021-03-24 3180 struct
xfs_parent_name_rec new_rec;
3818584f03ce2d Allison Henderson 2021-03-24 3181 struct
xfs_parent_name_rec old_rec;
3818584f03ce2d Allison Henderson 2021-03-24 3182 xfs_dir2_dataptr_t
new_diroffset;
3818584f03ce2d Allison Henderson 2021-03-24 3183 xfs_dir2_dataptr_t
old_diroffset;
3818584f03ce2d Allison Henderson 2021-03-24 3184 struct xfs_da_args
new_args = {
3818584f03ce2d Allison Henderson 2021-03-24 3185 .dp = src_ip,
3818584f03ce2d Allison Henderson 2021-03-24 3186 .geo = mp->m_attr_geo,
3818584f03ce2d Allison Henderson 2021-03-24 3187 .whichfork =
XFS_ATTR_FORK,
3818584f03ce2d Allison Henderson 2021-03-24 3188 .attr_filter =
XFS_ATTR_PARENT,
3818584f03ce2d Allison Henderson 2021-03-24 3189 .op_flags =
XFS_DA_OP_OKNOENT,
3818584f03ce2d Allison Henderson 2021-03-24 3190 .name = (const
uint8_t *)&new_rec,
3818584f03ce2d Allison Henderson 2021-03-24 3191 .namelen =
sizeof(new_rec),
3818584f03ce2d Allison Henderson 2021-03-24 3192 .value = (void
*)target_name->name,
3818584f03ce2d Allison Henderson 2021-03-24 3193 .valuelen =
target_name->len,
3818584f03ce2d Allison Henderson 2021-03-24 3194 };
3818584f03ce2d Allison Henderson 2021-03-24 3195 struct xfs_da_args
old_args = {
3818584f03ce2d Allison Henderson 2021-03-24 3196 .dp = src_ip,
3818584f03ce2d Allison Henderson 2021-03-24 3197 .geo = mp->m_attr_geo,
3818584f03ce2d Allison Henderson 2021-03-24 3198 .whichfork =
XFS_ATTR_FORK,
3818584f03ce2d Allison Henderson 2021-03-24 3199 .attr_filter =
XFS_ATTR_PARENT,
3818584f03ce2d Allison Henderson 2021-03-24 3200 .op_flags =
XFS_DA_OP_OKNOENT,
3818584f03ce2d Allison Henderson 2021-03-24 3201 .name = (const
uint8_t *)&old_rec,
3818584f03ce2d Allison Henderson 2021-03-24 3202 .namelen =
sizeof(old_rec),
3818584f03ce2d Allison Henderson 2021-03-24 3203 .value = NULL,
3818584f03ce2d Allison Henderson 2021-03-24 3204 .valuelen = 0,
3818584f03ce2d Allison Henderson 2021-03-24 3205 };
f6bba2017afb3b Dave Chinner 2013-08-12 3206 f6bba2017afb3b Dave
Chinner 2013-08-12 3207 trace_xfs_rename(src_dp, target_dp,
src_name, target_name);
f6bba2017afb3b Dave Chinner 2013-08-12 3208 eeacd3217b8fa8 Dave
Chinner 2015-03-25 3209 if ((flags & RENAME_EXCHANGE) && !target_ip)
eeacd3217b8fa8 Dave Chinner 2015-03-25 3210 return -EINVAL;
eeacd3217b8fa8 Dave Chinner 2015-03-25 3211 7dcf5c3e4527cf Dave
Chinner 2015-03-25 3212 /*
7dcf5c3e4527cf Dave Chinner 2015-03-25 3213 * If we are doing a
whiteout operation, allocate the whiteout inode
7dcf5c3e4527cf Dave Chinner 2015-03-25 3214 * we will be
placing at the target and ensure the type is set
7dcf5c3e4527cf Dave Chinner 2015-03-25 3215 * appropriately.
7dcf5c3e4527cf Dave Chinner 2015-03-25 3216 */
7dcf5c3e4527cf Dave Chinner 2015-03-25 3217 if (flags &
RENAME_WHITEOUT) {
7dcf5c3e4527cf Dave Chinner 2015-03-25 3218 ASSERT(!(flags &
(RENAME_NOREPLACE | RENAME_EXCHANGE)));
f736d93d76d3e9 Christoph Hellwig 2021-01-21 3219 error =
xfs_rename_alloc_whiteout(mnt_userns, target_dp, &wip);
7dcf5c3e4527cf Dave Chinner 2015-03-25 3220 if (error)
7dcf5c3e4527cf Dave Chinner 2015-03-25 3221 return error;
f6bba2017afb3b Dave Chinner 2013-08-12 3222 7dcf5c3e4527cf Dave
Chinner 2015-03-25 3223 /* setup target dirent info as whiteout */
7dcf5c3e4527cf Dave Chinner 2015-03-25 3224 src_name->type =
XFS_DIR3_FT_CHRDEV;
7dcf5c3e4527cf Dave Chinner 2015-03-25 3225 }
f6bba2017afb3b Dave Chinner 2013-08-12 3226 7dcf5c3e4527cf Dave
Chinner 2015-03-25 3227 xfs_sort_for_rename(src_dp, target_dp,
src_ip, target_ip, wip,
f6bba2017afb3b Dave Chinner 2013-08-12 3228 inodes, &num_inodes);
3818584f03ce2d Allison Henderson 2021-03-24 3229 if
(xfs_hasdelattr(mp)) {
3818584f03ce2d Allison Henderson 2021-03-24 3230 error =
xfs_attr_use_log_assist(mp);
3818584f03ce2d Allison Henderson 2021-03-24 3231 if (error)
3818584f03ce2d Allison Henderson 2021-03-24 3232 goto out_release_wip;
3818584f03ce2d Allison Henderson 2021-03-24 3233 }
f6bba2017afb3b Dave Chinner 2013-08-12 3234 f6bba2017afb3b Dave
Chinner 2013-08-12 3235 spaceres = XFS_RENAME_SPACE_RES(mp,
target_name->len);
253f4911f297b8 Christoph Hellwig 2016-04-06 3236 error =
xfs_trans_alloc(mp, &M_RES(mp)->tr_rename, spaceres, 0, 0, &tp);
2451337dd04390 Dave Chinner 2014-06-25 3237 if (error == -ENOSPC) {
f6bba2017afb3b Dave Chinner 2013-08-12 3238 spaceres = 0;
253f4911f297b8 Christoph Hellwig 2016-04-06 3239 error =
xfs_trans_alloc(mp, &M_RES(mp)->tr_rename, 0, 0, 0,
253f4911f297b8 Christoph Hellwig 2016-04-06 3240 &tp);
f6bba2017afb3b Dave Chinner 2013-08-12 3241 }
445883e8133975 Dave Chinner 2015-03-25 3242 if (error)
3818584f03ce2d Allison Henderson 2021-03-24 3243 goto drop_incompat;
f6bba2017afb3b Dave Chinner 2013-08-12 3244 f6bba2017afb3b Dave
Chinner 2013-08-12 3245 /*
f6bba2017afb3b Dave Chinner 2013-08-12 3246 * Attach the dquots
to the inodes
f6bba2017afb3b Dave Chinner 2013-08-12 3247 */
f6bba2017afb3b Dave Chinner 2013-08-12 3248 error =
xfs_qm_vop_rename_dqattach(inodes);
445883e8133975 Dave Chinner 2015-03-25 3249 if (error)
445883e8133975 Dave Chinner 2015-03-25 3250 goto out_trans_cancel;
f6bba2017afb3b Dave Chinner 2013-08-12 3251 f6bba2017afb3b Dave
Chinner 2013-08-12 3252 /*
f6bba2017afb3b Dave Chinner 2013-08-12 3253 * Lock all the
participating inodes. Depending upon whether
f6bba2017afb3b Dave Chinner 2013-08-12 3254 * the target_name
exists in the target directory, and
f6bba2017afb3b Dave Chinner 2013-08-12 3255 * whether the
target directory is the same as the source
f6bba2017afb3b Dave Chinner 2013-08-12 3256 * directory, we can
lock from 2 to 4 inodes.
f6bba2017afb3b Dave Chinner 2013-08-12 3257 */
f6bba2017afb3b Dave Chinner 2013-08-12 3258
xfs_lock_inodes(inodes, num_inodes, XFS_ILOCK_EXCL);
f6bba2017afb3b Dave Chinner 2013-08-12 3259 f6bba2017afb3b Dave
Chinner 2013-08-12 3260 /*
f6bba2017afb3b Dave Chinner 2013-08-12 3261 * Join all the
inodes to the transaction. From this point on,
f6bba2017afb3b Dave Chinner 2013-08-12 3262 * we can rely on
either trans_commit or trans_cancel to unlock
f6bba2017afb3b Dave Chinner 2013-08-12 3263 * them.
f6bba2017afb3b Dave Chinner 2013-08-12 3264 */
3818584f03ce2d Allison Henderson 2021-03-24 3265 xfs_trans_ijoin(tp,
src_dp, 0);
f6bba2017afb3b Dave Chinner 2013-08-12 3266 if (new_parent)
3818584f03ce2d Allison Henderson 2021-03-24 3267 xfs_trans_ijoin(tp,
target_dp, 0);
3818584f03ce2d Allison Henderson 2021-03-24 3268 xfs_trans_ijoin(tp,
src_ip, 0);
f6bba2017afb3b Dave Chinner 2013-08-12 3269 if (target_ip)
3818584f03ce2d Allison Henderson 2021-03-24 3270 xfs_trans_ijoin(tp,
target_ip, 0);
7dcf5c3e4527cf Dave Chinner 2015-03-25 3271 if (wip)
3818584f03ce2d Allison Henderson 2021-03-24 3272 xfs_trans_ijoin(tp,
wip, 0);
f6bba2017afb3b Dave Chinner 2013-08-12 3273 f6bba2017afb3b Dave
Chinner 2013-08-12 3274 /*
f6bba2017afb3b Dave Chinner 2013-08-12 3275 * If we are using
project inheritance, we only allow renames
f6bba2017afb3b Dave Chinner 2013-08-12 3276 * into our tree
when the project IDs are the same; else the
f6bba2017afb3b Dave Chinner 2013-08-12 3277 * tree quota
mechanism would be circumvented.
f6bba2017afb3b Dave Chinner 2013-08-12 3278 */
db07349da2f564 Christoph Hellwig 2021-03-29 3279 if
(unlikely((target_dp->i_diflags & XFS_DIFLAG_PROJINHERIT) &&
ceaf603c7024d3 Christoph Hellwig 2021-03-29 3280
target_dp->i_projid != src_ip->i_projid)) {
2451337dd04390 Dave Chinner 2014-06-25 3281 error = -EXDEV;
3818584f03ce2d Allison Henderson 2021-03-24 3282 goto out_unlock;
f6bba2017afb3b Dave Chinner 2013-08-12 3283 }
f6bba2017afb3b Dave Chinner 2013-08-12 3284 eeacd3217b8fa8 Dave
Chinner 2015-03-25 3285 /* RENAME_EXCHANGE is unique from here
on. */
3818584f03ce2d Allison Henderson 2021-03-24 3286 if (flags &
RENAME_EXCHANGE) {
3818584f03ce2d Allison Henderson 2021-03-24 @3287 error =
xfs_cross_rename(tp, src_dp, src_name, src_ip,
d31a1825450062 Carlos Maiolino 2014-12-24 3288 target_dp,
target_name, target_ip,
f16dea54b789aa Brian Foster 2018-07-11 3289 spaceres);
3818584f03ce2d Allison Henderson 2021-03-24 3290 goto out_pptr;
3818584f03ce2d Allison Henderson 2021-03-24 3291 }
f6bba2017afb3b Dave Chinner 2013-08-12 3292 /*
bc56ad8c74b858 kaixuxia 2019-09-03 3293 * Check for
expected errors before we dirty the transaction
bc56ad8c74b858 kaixuxia 2019-09-03 3294 * so we can return
an error without a transaction abort.
02092a2f034fde Chandan Babu R 2021-01-22 3295 *
02092a2f034fde Chandan Babu R 2021-01-22 3296 * Extent count
overflow check:
02092a2f034fde Chandan Babu R 2021-01-22 3297 *
02092a2f034fde Chandan Babu R 2021-01-22 3298 * From the
perspective of src_dp, a rename operation is essentially a
02092a2f034fde Chandan Babu R 2021-01-22 3299 * directory entry
remove operation. Hence the only place where we check
02092a2f034fde Chandan Babu R 2021-01-22 3300 * for extent count
overflow for src_dp is in
02092a2f034fde Chandan Babu R 2021-01-22 3301 *
xfs_bmap_del_extent_real(). xfs_bmap_del_extent_real() returns
02092a2f034fde Chandan Babu R 2021-01-22 3302 * -ENOSPC when it
detects a possible extent count overflow and in
02092a2f034fde Chandan Babu R 2021-01-22 3303 * response, the
higher layers of directory handling code do the
02092a2f034fde Chandan Babu R 2021-01-22 3304 * following:
02092a2f034fde Chandan Babu R 2021-01-22 3305 * 1. Data/Free
blocks: XFS lets these blocks linger until a
02092a2f034fde Chandan Babu R 2021-01-22 3306 * future remove
operation removes them.
02092a2f034fde Chandan Babu R 2021-01-22 3307 * 2. Dabtree
blocks: XFS swaps the blocks with the last block in the
02092a2f034fde Chandan Babu R 2021-01-22 3308 * Leaf space and
unmaps the last block.
02092a2f034fde Chandan Babu R 2021-01-22 3309 *
02092a2f034fde Chandan Babu R 2021-01-22 3310 * For target_dp,
there are two cases depending on whether the
02092a2f034fde Chandan Babu R 2021-01-22 3311 * destination
directory entry exists or not.
02092a2f034fde Chandan Babu R 2021-01-22 3312 *
02092a2f034fde Chandan Babu R 2021-01-22 3313 * When destination
directory entry does not exist (i.e. target_ip ==
02092a2f034fde Chandan Babu R 2021-01-22 3314 * NULL), extent
count overflow check is performed only when transaction
02092a2f034fde Chandan Babu R 2021-01-22 3315 * has a non-zero
sized space reservation associated with it. With a
02092a2f034fde Chandan Babu R 2021-01-22 3316 * zero-sized space
reservation, XFS allows a rename operation to
02092a2f034fde Chandan Babu R 2021-01-22 3317 * continue only
when the directory has sufficient free space in its
02092a2f034fde Chandan Babu R 2021-01-22 3318 * data/leaf/free
space blocks to hold the new entry.
02092a2f034fde Chandan Babu R 2021-01-22 3319 *
02092a2f034fde Chandan Babu R 2021-01-22 3320 * When destination
directory entry exists (i.e. target_ip != NULL), all
02092a2f034fde Chandan Babu R 2021-01-22 3321 * we need to do is
change the inode number associated with the already
02092a2f034fde Chandan Babu R 2021-01-22 3322 * existing entry.
Hence there is no need to perform an extent count
02092a2f034fde Chandan Babu R 2021-01-22 3323 * overflow check.
f6bba2017afb3b Dave Chinner 2013-08-12 3324 */
f6bba2017afb3b Dave Chinner 2013-08-12 3325 if (target_ip == NULL) {
f6bba2017afb3b Dave Chinner 2013-08-12 3326 /*
f6bba2017afb3b Dave Chinner 2013-08-12 3327 * If there's no
space reservation, check the entry will
f6bba2017afb3b Dave Chinner 2013-08-12 3328 * fit before
actually inserting it.
f6bba2017afb3b Dave Chinner 2013-08-12 3329 */
94f3cad555d660 Eric Sandeen 2014-09-09 3330 if (!spaceres) {
94f3cad555d660 Eric Sandeen 2014-09-09 3331 error =
xfs_dir_canenter(tp, target_dp, target_name);
f6bba2017afb3b Dave Chinner 2013-08-12 3332 if (error)
3818584f03ce2d Allison Henderson 2021-03-24 3333 goto out_unlock;
02092a2f034fde Chandan Babu R 2021-01-22 3334 } else {
02092a2f034fde Chandan Babu R 2021-01-22 3335 error =
xfs_iext_count_may_overflow(target_dp,
02092a2f034fde Chandan Babu R 2021-01-22 3336 XFS_DATA_FORK,
02092a2f034fde Chandan Babu R 2021-01-22 3337
XFS_IEXT_DIR_MANIP_CNT(mp));
02092a2f034fde Chandan Babu R 2021-01-22 3338 if (error)
02092a2f034fde Chandan Babu R 2021-01-22 3339 goto
out_trans_cancel;
94f3cad555d660 Eric Sandeen 2014-09-09 3340 }
bc56ad8c74b858 kaixuxia 2019-09-03 3341 } else {
bc56ad8c74b858 kaixuxia 2019-09-03 3342 /*
bc56ad8c74b858 kaixuxia 2019-09-03 3343 * If target exists
and it's a directory, check that whether
bc56ad8c74b858 kaixuxia 2019-09-03 3344 * it can be destroyed.
bc56ad8c74b858 kaixuxia 2019-09-03 3345 */
bc56ad8c74b858 kaixuxia 2019-09-03 3346 if
(S_ISDIR(VFS_I(target_ip)->i_mode) &&
bc56ad8c74b858 kaixuxia 2019-09-03 3347
(!xfs_dir_isempty(target_ip) ||
bc56ad8c74b858 kaixuxia 2019-09-03 3348
(VFS_I(target_ip)->i_nlink > 2))) {
bc56ad8c74b858 kaixuxia 2019-09-03 3349 error = -EEXIST;
bc56ad8c74b858 kaixuxia 2019-09-03 3350 goto out_trans_cancel;
bc56ad8c74b858 kaixuxia 2019-09-03 3351 }
bc56ad8c74b858 kaixuxia 2019-09-03 3352 }
bc56ad8c74b858 kaixuxia 2019-09-03 3353 6da1b4b1ab36d8
Darrick J. Wong 2021-01-22 3354 /*
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3355 * Lock the AGI
buffers we need to handle bumping the nlink of the
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3356 * whiteout inode
off the unlinked list and to handle dropping the
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3357 * nlink of the
target inode. Per locking order rules, do this in
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3358 * increasing AG
order and before directory block allocation tries to
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3359 * grab AGFs because
we grab AGIs before AGFs.
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3360 *
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3361 * The (vfs) caller
must ensure that if src is a directory then
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3362 * target_ip is
either null or an empty directory.
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3363 */
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3364 for (i = 0; i <
num_inodes && inodes[i] != NULL; i++) {
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3365 if (inodes[i] == wip ||
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3366 (inodes[i] ==
target_ip &&
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3367
(VFS_I(target_ip)->i_nlink == 1 || src_is_directory))) {
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3368 struct xfs_buf *bp;
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3369 xfs_agnumber_t agno;
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3370 6da1b4b1ab36d8
Darrick J. Wong 2021-01-22 3371 agno = XFS_INO_TO_AGNO(mp,
inodes[i]->i_ino);
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3372 error =
xfs_read_agi(mp, tp, agno, &bp);
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3373 if (error)
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3374 goto
out_trans_cancel;
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3375 }
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3376 }
6da1b4b1ab36d8 Darrick J. Wong 2021-01-22 3377 bc56ad8c74b858
kaixuxia 2019-09-03 3378 /*
bc56ad8c74b858 kaixuxia 2019-09-03 3379 * Directory entry
creation below may acquire the AGF. Remove
bc56ad8c74b858 kaixuxia 2019-09-03 3380 * the whiteout from
the unlinked list first to preserve correct
bc56ad8c74b858 kaixuxia 2019-09-03 3381 * AGI/AGF locking
order. This dirties the transaction so failures
bc56ad8c74b858 kaixuxia 2019-09-03 3382 * after this point
will abort and log recovery will clean up the
bc56ad8c74b858 kaixuxia 2019-09-03 3383 * mess.
bc56ad8c74b858 kaixuxia 2019-09-03 3384 *
bc56ad8c74b858 kaixuxia 2019-09-03 3385 * For whiteouts, we
need to bump the link count on the whiteout
bc56ad8c74b858 kaixuxia 2019-09-03 3386 * inode. After this
point, we have a real link, clear the tmpfile
bc56ad8c74b858 kaixuxia 2019-09-03 3387 * state flag from
the inode so it doesn't accidentally get misused
bc56ad8c74b858 kaixuxia 2019-09-03 3388 * in future.
bc56ad8c74b858 kaixuxia 2019-09-03 3389 */
bc56ad8c74b858 kaixuxia 2019-09-03 3390 if (wip) {
f40aadb2bb64fe Dave Chinner 2021-06-02 3391 struct xfs_perag *pag;
f40aadb2bb64fe Dave Chinner 2021-06-02 3392 bc56ad8c74b858
kaixuxia 2019-09-03 3393 ASSERT(VFS_I(wip)->i_nlink == 0);
f40aadb2bb64fe Dave Chinner 2021-06-02 3394 f40aadb2bb64fe Dave
Chinner 2021-06-02 3395 pag = xfs_perag_get(mp,
XFS_INO_TO_AGNO(mp, wip->i_ino));
f40aadb2bb64fe Dave Chinner 2021-06-02 3396 error =
xfs_iunlink_remove(tp, pag, wip);
f40aadb2bb64fe Dave Chinner 2021-06-02 3397 xfs_perag_put(pag);
bc56ad8c74b858 kaixuxia 2019-09-03 3398 if (error)
bc56ad8c74b858 kaixuxia 2019-09-03 3399 goto out_trans_cancel;
bc56ad8c74b858 kaixuxia 2019-09-03 3400 bc56ad8c74b858
kaixuxia 2019-09-03 3401 xfs_bumplink(tp, wip);
bc56ad8c74b858 kaixuxia 2019-09-03 3402 VFS_I(wip)->i_state
&= ~I_LINKABLE;
bc56ad8c74b858 kaixuxia 2019-09-03 3403 }
bc56ad8c74b858 kaixuxia 2019-09-03 3404 bc56ad8c74b858
kaixuxia 2019-09-03 3405 /*
bc56ad8c74b858 kaixuxia 2019-09-03 3406 * Set up the target.
bc56ad8c74b858 kaixuxia 2019-09-03 3407 */
bc56ad8c74b858 kaixuxia 2019-09-03 3408 if (target_ip == NULL) {
f6bba2017afb3b Dave Chinner 2013-08-12 3409 /*
f6bba2017afb3b Dave Chinner 2013-08-12 3410 * If target does
not exist and the rename crosses
f6bba2017afb3b Dave Chinner 2013-08-12 3411 * directories,
adjust the target directory link count
f6bba2017afb3b Dave Chinner 2013-08-12 3412 * to account for
the ".." reference from the new entry.
f6bba2017afb3b Dave Chinner 2013-08-12 3413 */
f6bba2017afb3b Dave Chinner 2013-08-12 3414 error =
xfs_dir_createname(tp, target_dp, target_name,
3818584f03ce2d Allison Henderson 2021-03-24 3415
src_ip->i_ino, spaceres, &new_diroffset);
f6bba2017afb3b Dave Chinner 2013-08-12 3416 if (error)
c8eac49ef798a7 Brian Foster 2018-07-24 3417 goto out_trans_cancel;
f6bba2017afb3b Dave Chinner 2013-08-12 3418 f6bba2017afb3b Dave
Chinner 2013-08-12 3419 xfs_trans_ichgtime(tp, target_dp,
f6bba2017afb3b Dave Chinner 2013-08-12 3420 XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG);
f6bba2017afb3b Dave Chinner 2013-08-12 3421 f6bba2017afb3b Dave
Chinner 2013-08-12 3422 if (new_parent && src_is_directory) {
910832697cf855 Eric Sandeen 2019-05-01 3423 xfs_bumplink(tp,
target_dp);
f6bba2017afb3b Dave Chinner 2013-08-12 3424 }
f6bba2017afb3b Dave Chinner 2013-08-12 3425 } else { /*
target_ip != NULL */
f6bba2017afb3b Dave Chinner 2013-08-12 3426 /*
f6bba2017afb3b Dave Chinner 2013-08-12 3427 * Link the source
inode under the target name.
f6bba2017afb3b Dave Chinner 2013-08-12 3428 * If the source
inode is a directory and we are moving
f6bba2017afb3b Dave Chinner 2013-08-12 3429 * it across
directories, its ".." entry will be
f6bba2017afb3b Dave Chinner 2013-08-12 3430 * inconsistent
until we replace that down below.
f6bba2017afb3b Dave Chinner 2013-08-12 3431 *
f6bba2017afb3b Dave Chinner 2013-08-12 3432 * In case there is
already an entry with the same
f6bba2017afb3b Dave Chinner 2013-08-12 3433 * name at the
destination directory, remove it first.
f6bba2017afb3b Dave Chinner 2013-08-12 3434 */
f6bba2017afb3b Dave Chinner 2013-08-12 3435 error =
xfs_dir_replace(tp, target_dp, target_name,
3818584f03ce2d Allison Henderson 2021-03-24 3436 src_ip->i_ino,
spaceres, &new_diroffset);
f6bba2017afb3b Dave Chinner 2013-08-12 3437 if (error)
c8eac49ef798a7 Brian Foster 2018-07-24 3438 goto out_trans_cancel;
f6bba2017afb3b Dave Chinner 2013-08-12 3439 f6bba2017afb3b Dave
Chinner 2013-08-12 3440 xfs_trans_ichgtime(tp, target_dp,
f6bba2017afb3b Dave Chinner 2013-08-12 3441 XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG);
f6bba2017afb3b Dave Chinner 2013-08-12 3442 f6bba2017afb3b Dave
Chinner 2013-08-12 3443 /*
f6bba2017afb3b Dave Chinner 2013-08-12 3444 * Decrement the
link count on the target since the target
f6bba2017afb3b Dave Chinner 2013-08-12 3445 * dir no longer
points to it.
f6bba2017afb3b Dave Chinner 2013-08-12 3446 */
f6bba2017afb3b Dave Chinner 2013-08-12 3447 error =
xfs_droplink(tp, target_ip);
f6bba2017afb3b Dave Chinner 2013-08-12 3448 if (error)
c8eac49ef798a7 Brian Foster 2018-07-24 3449 goto out_trans_cancel;
f6bba2017afb3b Dave Chinner 2013-08-12 3450 f6bba2017afb3b Dave
Chinner 2013-08-12 3451 if (src_is_directory) {
f6bba2017afb3b Dave Chinner 2013-08-12 3452 /*
f6bba2017afb3b Dave Chinner 2013-08-12 3453 * Drop the link
from the old "." entry.
f6bba2017afb3b Dave Chinner 2013-08-12 3454 */
f6bba2017afb3b Dave Chinner 2013-08-12 3455 error =
xfs_droplink(tp, target_ip);
f6bba2017afb3b Dave Chinner 2013-08-12 3456 if (error)
c8eac49ef798a7 Brian Foster 2018-07-24 3457 goto
out_trans_cancel;
f6bba2017afb3b Dave Chinner 2013-08-12 3458 }
f6bba2017afb3b Dave Chinner 2013-08-12 3459 } /* target_ip !=
NULL */
f6bba2017afb3b Dave Chinner 2013-08-12 3460 f6bba2017afb3b Dave
Chinner 2013-08-12 3461 /*
f6bba2017afb3b Dave Chinner 2013-08-12 3462 * Remove the source.
f6bba2017afb3b Dave Chinner 2013-08-12 3463 */
f6bba2017afb3b Dave Chinner 2013-08-12 3464 if (new_parent &&
src_is_directory) {
f6bba2017afb3b Dave Chinner 2013-08-12 3465 /*
f6bba2017afb3b Dave Chinner 2013-08-12 3466 * Rewrite the ".."
entry to point to the new
f6bba2017afb3b Dave Chinner 2013-08-12 3467 * directory.
f6bba2017afb3b Dave Chinner 2013-08-12 3468 */
f6bba2017afb3b Dave Chinner 2013-08-12 3469 error =
xfs_dir_replace(tp, src_ip, &xfs_name_dotdot,
3818584f03ce2d Allison Henderson 2021-03-24 3470
target_dp->i_ino, spaceres, &new_diroffset);
2451337dd04390 Dave Chinner 2014-06-25 3471 ASSERT(error !=
-EEXIST);
f6bba2017afb3b Dave Chinner 2013-08-12 3472 if (error)
c8eac49ef798a7 Brian Foster 2018-07-24 3473 goto out_trans_cancel;
f6bba2017afb3b Dave Chinner 2013-08-12 3474 }
f6bba2017afb3b Dave Chinner 2013-08-12 3475 f6bba2017afb3b Dave
Chinner 2013-08-12 3476 /*
f6bba2017afb3b Dave Chinner 2013-08-12 3477 * We always want to
hit the ctime on the source inode.
f6bba2017afb3b Dave Chinner 2013-08-12 3478 *
f6bba2017afb3b Dave Chinner 2013-08-12 3479 * This isn't
strictly required by the standards since the source
f6bba2017afb3b Dave Chinner 2013-08-12 3480 * inode isn't
really being changed, but old unix file systems did
f6bba2017afb3b Dave Chinner 2013-08-12 3481 * it and some
incremental backup programs won't work without it.
f6bba2017afb3b Dave Chinner 2013-08-12 3482 */
f6bba2017afb3b Dave Chinner 2013-08-12 3483
xfs_trans_ichgtime(tp, src_ip, XFS_ICHGTIME_CHG);
f6bba2017afb3b Dave Chinner 2013-08-12 3484
xfs_trans_log_inode(tp, src_ip, XFS_ILOG_CORE);
f6bba2017afb3b Dave Chinner 2013-08-12 3485 f6bba2017afb3b Dave
Chinner 2013-08-12 3486 /*
f6bba2017afb3b Dave Chinner 2013-08-12 3487 * Adjust the link
count on src_dp. This is necessary when
f6bba2017afb3b Dave Chinner 2013-08-12 3488 * renaming a
directory, either within one parent when
f6bba2017afb3b Dave Chinner 2013-08-12 3489 * the target
existed, or across two parent directories.
f6bba2017afb3b Dave Chinner 2013-08-12 3490 */
f6bba2017afb3b Dave Chinner 2013-08-12 3491 if (src_is_directory
&& (new_parent || target_ip != NULL)) {
f6bba2017afb3b Dave Chinner 2013-08-12 3492 f6bba2017afb3b Dave
Chinner 2013-08-12 3493 /*
f6bba2017afb3b Dave Chinner 2013-08-12 3494 * Decrement link
count on src_directory since the
f6bba2017afb3b Dave Chinner 2013-08-12 3495 * entry that's
moved no longer points to it.
f6bba2017afb3b Dave Chinner 2013-08-12 3496 */
f6bba2017afb3b Dave Chinner 2013-08-12 3497 error =
xfs_droplink(tp, src_dp);
f6bba2017afb3b Dave Chinner 2013-08-12 3498 if (error)
c8eac49ef798a7 Brian Foster 2018-07-24 3499 goto out_trans_cancel;
f6bba2017afb3b Dave Chinner 2013-08-12 3500 }
f6bba2017afb3b Dave Chinner 2013-08-12 3501 7dcf5c3e4527cf Dave
Chinner 2015-03-25 3502 /*
7dcf5c3e4527cf Dave Chinner 2015-03-25 3503 * For whiteouts, we
only need to update the source dirent with the
7dcf5c3e4527cf Dave Chinner 2015-03-25 3504 * inode number of
the whiteout inode rather than removing it
7dcf5c3e4527cf Dave Chinner 2015-03-25 3505 * altogether.
7dcf5c3e4527cf Dave Chinner 2015-03-25 3506 */
7dcf5c3e4527cf Dave Chinner 2015-03-25 3507 if (wip) {
7dcf5c3e4527cf Dave Chinner 2015-03-25 3508 error =
xfs_dir_replace(tp, src_dp, src_name, wip->i_ino,
3818584f03ce2d Allison Henderson 2021-03-24 3509 spaceres,
&old_diroffset);
02092a2f034fde Chandan Babu R 2021-01-22 3510 } else {
02092a2f034fde Chandan Babu R 2021-01-22 3511 /*
02092a2f034fde Chandan Babu R 2021-01-22 3512 * NOTE: We don't
need to check for extent count overflow here
02092a2f034fde Chandan Babu R 2021-01-22 3513 * because the dir
remove name code will leave the dir block in
02092a2f034fde Chandan Babu R 2021-01-22 3514 * place if the
extent count would overflow.
02092a2f034fde Chandan Babu R 2021-01-22 3515 */
f6bba2017afb3b Dave Chinner 2013-08-12 3516 error =
xfs_dir_removename(tp, src_dp, src_name, src_ip->i_ino,
3818584f03ce2d Allison Henderson 2021-03-24 3517 spaceres,
&old_diroffset);
02092a2f034fde Chandan Babu R 2021-01-22 3518 }
02092a2f034fde Chandan Babu R 2021-01-22 3519 f6bba2017afb3b Dave
Chinner 2013-08-12 3520 if (error)
c8eac49ef798a7 Brian Foster 2018-07-24 3521 goto out_trans_cancel;
f6bba2017afb3b Dave Chinner 2013-08-12 3522 3818584f03ce2d
Allison Henderson 2021-03-24 3523 out_pptr:
3818584f03ce2d Allison Henderson 2021-03-24 3524 if
(xfs_sb_version_hasparent(&mp->m_sb)) {
3818584f03ce2d Allison Henderson 2021-03-24 3525 new_args.trans = tp;
3818584f03ce2d Allison Henderson 2021-03-24 3526
xfs_init_parent_name_rec(&new_rec, target_dp, new_diroffset);
3818584f03ce2d Allison Henderson 2021-03-24 3527 new_args.hashval =
xfs_da_hashname(new_args.name,
3818584f03ce2d Allison Henderson 2021-03-24 3528
new_args.namelen);
3818584f03ce2d Allison Henderson 2021-03-24 3529 error =
xfs_attr_set_deferred(&new_args);
3818584f03ce2d Allison Henderson 2021-03-24 3530 if (error)
3818584f03ce2d Allison Henderson 2021-03-24 3531 goto out_trans_cancel;
3818584f03ce2d Allison Henderson 2021-03-24 3532 3818584f03ce2d
Allison Henderson 2021-03-24 3533 old_args.trans = tp;
3818584f03ce2d Allison Henderson 2021-03-24 3534
xfs_init_parent_name_rec(&old_rec, src_dp, old_diroffset);
3818584f03ce2d Allison Henderson 2021-03-24 3535 old_args.hashval =
xfs_da_hashname(old_args.name,
3818584f03ce2d Allison Henderson 2021-03-24 3536
old_args.namelen);
3818584f03ce2d Allison Henderson 2021-03-24 3537 error =
xfs_attr_remove_deferred(&old_args);
3818584f03ce2d Allison Henderson 2021-03-24 3538 if (error)
3818584f03ce2d Allison Henderson 2021-03-24 3539 goto out_trans_cancel;
3818584f03ce2d Allison Henderson 2021-03-24 3540 }
3818584f03ce2d Allison Henderson 2021-03-24 3541 f6bba2017afb3b Dave
Chinner 2013-08-12 3542 xfs_trans_ichgtime(tp, src_dp,
XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
f6bba2017afb3b Dave Chinner 2013-08-12 3543
xfs_trans_log_inode(tp, src_dp, XFS_ILOG_CORE);
f6bba2017afb3b Dave Chinner 2013-08-12 3544 if (new_parent)
f6bba2017afb3b Dave Chinner 2013-08-12 3545
xfs_trans_log_inode(tp, target_dp, XFS_ILOG_CORE);
f6bba2017afb3b Dave Chinner 2013-08-12 3546 c9cfdb38117217 Brian
Foster 2018-07-11 3547 error = xfs_finish_rename(tp);
3818584f03ce2d Allison Henderson 2021-03-24 3548 3818584f03ce2d
Allison Henderson 2021-03-24 3549 out_unlock:
7dcf5c3e4527cf Dave Chinner 2015-03-25 3550 if (wip)
44a8736bd20a08 Darrick J. Wong 2018-07-25 3551 xfs_irele(wip);
3818584f03ce2d Allison Henderson 2021-03-24 3552 if (wip)
3818584f03ce2d Allison Henderson 2021-03-24 3553 xfs_iunlock(wip,
XFS_ILOCK_EXCL);
3818584f03ce2d Allison Henderson 2021-03-24 3554 if (target_ip)
3818584f03ce2d Allison Henderson 2021-03-24 3555
xfs_iunlock(target_ip, XFS_ILOCK_EXCL);
3818584f03ce2d Allison Henderson 2021-03-24 3556 xfs_iunlock(src_ip,
XFS_ILOCK_EXCL);
3818584f03ce2d Allison Henderson 2021-03-24 3557 if (new_parent)
3818584f03ce2d Allison Henderson 2021-03-24 3558
xfs_iunlock(target_dp, XFS_ILOCK_EXCL);
3818584f03ce2d Allison Henderson 2021-03-24 3559 xfs_iunlock(src_dp,
XFS_ILOCK_EXCL);
3818584f03ce2d Allison Henderson 2021-03-24 3560 7dcf5c3e4527cf Dave
Chinner 2015-03-25 3561 return error;
f6bba2017afb3b Dave Chinner 2013-08-12 3562 445883e8133975 Dave
Chinner 2015-03-25 3563 out_trans_cancel:
4906e21545814e Christoph Hellwig 2015-06-04 3564 xfs_trans_cancel(tp);
3818584f03ce2d Allison Henderson 2021-03-24 3565 drop_incompat:
3818584f03ce2d Allison Henderson 2021-03-24 3566 if (xfs_hasdelattr(mp))
3818584f03ce2d Allison Henderson 2021-03-24 3567
xlog_drop_incompat_feat(mp->m_log);
253f4911f297b8 Christoph Hellwig 2016-04-06 3568 out_release_wip:
7dcf5c3e4527cf Dave Chinner 2015-03-25 3569 if (wip)
44a8736bd20a08 Darrick J. Wong 2018-07-25 3570 xfs_irele(wip);
f6bba2017afb3b Dave Chinner 2013-08-12 3571 return error;
f6bba2017afb3b Dave Chinner 2013-08-12 3572 }
f6bba2017afb3b Dave Chinner 2013-08-12 3573
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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