[PATCH 01/29] xfs: use unsigned ints for non-negative quantities in xfs_attr_remote.c

Darrick J. Wong
2024-03-30T00:36:20Z

From: Darrick J. Wong <djwong@kernel.org>

In the next few patches we're going to refactor the attr remote code so
that we can support headerless remote xattr values for storing merkle
tree blocks. For now, let's change the code to use unsigned int to
describe quantities of bytes and blocks that cannot be negative.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
fs/xfs/libxfs/xfs_attr_remote.c | 54 ++++++++++++++++++++-------------------
fs/xfs/libxfs/xfs_attr_remote.h | 2 +
2 files changed, 28 insertions(+), 28 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_attr_remote.c b/fs/xfs/libxfs/xfs_attr_remote.c
index a8de9dc1e998a..c778a3a51792e 100644
--- a/fs/xfs/libxfs/xfs_attr_remote.c
+++ b/fs/xfs/libxfs/xfs_attr_remote.c
@@ -47,13 +47,13 @@
* Each contiguous block has a header, so it is not just a simple attribute
* length to FSB conversion.
*/
-int
+unsigned int
xfs_attr3_rmt_blocks(
- struct xfs_mount *mp,
- int attrlen)
+ struct xfs_mount *mp,
+ unsigned int attrlen)
{
if (xfs_has_crc(mp)) {
- int buflen = XFS_ATTR3_RMT_BUF_SPACE(mp, mp->m_sb.sb_blocksize);
+ unsigned int buflen = XFS_ATTR3_RMT_BUF_SPACE(mp, mp->m_sb.sb_blocksize);
return (attrlen + buflen - 1) / buflen;
}
return XFS_B_TO_FSB(mp, attrlen);
@@ -122,9 +122,9 @@ __xfs_attr3_rmt_read_verify(
{
struct xfs_mount *mp = bp->b_mount;
char *ptr;
- int len;
+ unsigned int len;
xfs_daddr_t bno;
- int blksize = mp->m_attr_geo->blksize;
+ unsigned int blksize = mp->m_attr_geo->blksize;

/* no verification of non-crc buffers */
if (!xfs_has_crc(mp))
@@ -186,7 +186,7 @@ xfs_attr3_rmt_write_verify(
{
struct xfs_mount *mp = bp->b_mount;
xfs_failaddr_t fa;
- int blksize = mp->m_attr_geo->blksize;
+ unsigned int blksize = mp->m_attr_geo->blksize;
char *ptr;
int len;
xfs_daddr_t bno;
@@ -281,20 +281,20 @@ xfs_attr_rmtval_copyout(
struct xfs_buf *bp,
struct xfs_inode *dp,
xfs_ino_t owner,
- int *offset,
- int *valuelen,
+ unsigned int *offset,
+ unsigned int *valuelen,
uint8_t **dst)
{
char *src = bp->b_addr;
xfs_daddr_t bno = xfs_buf_daddr(bp);
- int len = BBTOB(bp->b_length);
- int blksize = mp->m_attr_geo->blksize;
+ unsigned int len = BBTOB(bp->b_length);
+ unsigned int blksize = mp->m_attr_geo->blksize;

ASSERT(len >= blksize);

while (len > 0 && *valuelen > 0) {
- int hdr_size = 0;
- int byte_cnt = XFS_ATTR3_RMT_BUF_SPACE(mp, blksize);
+ unsigned int hdr_size = 0;
+ unsigned int byte_cnt = XFS_ATTR3_RMT_BUF_SPACE(mp, blksize);

byte_cnt = min(*valuelen, byte_cnt);

@@ -330,20 +330,20 @@ xfs_attr_rmtval_copyin(
struct xfs_mount *mp,
struct xfs_buf *bp,
xfs_ino_t ino,
- int *offset,
- int *valuelen,
+ unsigned int *offset,
+ unsigned int *valuelen,
uint8_t **src)
{
char *dst = bp->b_addr;
xfs_daddr_t bno = xfs_buf_daddr(bp);
- int len = BBTOB(bp->b_length);
- int blksize = mp->m_attr_geo->blksize;
+ unsigned int len = BBTOB(bp->b_length);
+ unsigned int blksize = mp->m_attr_geo->blksize;

ASSERT(len >= blksize);

while (len > 0 && *valuelen > 0) {
- int hdr_size;
- int byte_cnt = XFS_ATTR3_RMT_BUF_SPACE(mp, blksize);
+ unsigned int hdr_size;
+ unsigned int byte_cnt = XFS_ATTR3_RMT_BUF_SPACE(mp, blksize);

byte_cnt = min(*valuelen, byte_cnt);
hdr_size = xfs_attr3_rmt_hdr_set(mp, dst, ino, *offset,
@@ -389,12 +389,12 @@ xfs_attr_rmtval_get(
struct xfs_buf *bp;
xfs_dablk_t lblkno = args->rmtblkno;
uint8_t *dst = args->value;
- int valuelen;
+ unsigned int valuelen;
int nmap;
int error;
- int blkcnt = args->rmtblkcnt;
+ unsigned int blkcnt = args->rmtblkcnt;
int i;
- int offset = 0;
+ unsigned int offset = 0;

trace_xfs_attr_rmtval_get(args);

@@ -452,7 +452,7 @@ xfs_attr_rmt_find_hole(
struct xfs_inode *dp = args->dp;
struct xfs_mount *mp = dp->i_mount;
int error;
- int blkcnt;
+ unsigned int blkcnt;
xfs_fileoff_t lfileoff = 0;

/*
@@ -481,11 +481,11 @@ xfs_attr_rmtval_set_value(
struct xfs_bmbt_irec map;
xfs_dablk_t lblkno;
uint8_t *src = args->value;
- int blkcnt;
- int valuelen;
+ unsigned int blkcnt;
+ unsigned int valuelen;
int nmap;
int error;
- int offset = 0;
+ unsigned int offset = 0;

/*
* Roll through the "value", copying the attribute value to the
@@ -645,7 +645,7 @@ xfs_attr_rmtval_invalidate(
struct xfs_da_args *args)
{
xfs_dablk_t lblkno;
- int blkcnt;
+ unsigned int blkcnt;
int error;

/*
diff --git a/fs/xfs/libxfs/xfs_attr_remote.h b/fs/xfs/libxfs/xfs_attr_remote.h
index d097ec6c4dc35..c64b04f91cafd 100644
--- a/fs/xfs/libxfs/xfs_attr_remote.h
+++ b/fs/xfs/libxfs/xfs_attr_remote.h
@@ -6,7 +6,7 @@
#ifndef __XFS_ATTR_REMOTE_H__
#define __XFS_ATTR_REMOTE_H__

-int xfs_attr3_rmt_blocks(struct xfs_mount *mp, int attrlen);
+unsigned int xfs_attr3_rmt_blocks(struct xfs_mount *mp, unsigned int attrlen);

int xfs_attr_rmtval_get(struct xfs_da_args *args);
int xfs_attr_rmtval_stale(struct xfs_inode *ip, struct xfs_bmbt_irec *map,