From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: tytso@mit.edu, darrick.wong@oracle.com
Cc: linux-ext4@vger.kernel.org
Subject: [PATCH 32/34] fuse2fs: implement fallocate
Date: Sat, 13 Sep 2014 15:14:50 -0700 [thread overview]
Message-ID: <20140913221450.13646.5906.stgit@birch.djwong.org> (raw)
In-Reply-To: <20140913221112.13646.3873.stgit@birch.djwong.org>
Use the (new) ext2fs_fallocate() to fallocate file space.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
misc/fuse2fs.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 57 insertions(+), 1 deletion(-)
diff --git a/misc/fuse2fs.c b/misc/fuse2fs.c
index cadf93d..9fba411 100644
--- a/misc/fuse2fs.c
+++ b/misc/fuse2fs.c
@@ -3300,7 +3300,63 @@ out:
static int fallocate_helper(struct fuse_file_info *fp, int mode, off_t offset,
off_t len)
{
- return -EOPNOTSUPP;
+ struct fuse_context *ctxt = fuse_get_context();
+ struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+ struct fuse2fs_file_handle *fh = (struct fuse2fs_file_handle *)fp->fh;
+ ext2_filsys fs;
+ struct ext2_inode_large inode;
+ blk64_t start, end;
+ __u64 fsize;
+ errcode_t err;
+ int flags;
+
+ FUSE2FS_CHECK_CONTEXT(ff);
+ fs = ff->fs;
+ FUSE2FS_CHECK_MAGIC(fs, fh, FUSE2FS_FILE_MAGIC);
+ start = offset / fs->blocksize;
+ end = (offset + len - 1) / fs->blocksize;
+ dbg_printf("%s: ino=%d mode=0x%x start=%jd end=%llu\n", __func__,
+ fh->ino, mode, offset / fs->blocksize, end);
+ if (!fs_can_allocate(ff, len / fs->blocksize))
+ return -ENOSPC;
+
+ memset(&inode, 0, sizeof(inode));
+ err = ext2fs_read_inode_full(fs, fh->ino, (struct ext2_inode *)&inode,
+ sizeof(inode));
+ if (err)
+ return err;
+ fsize = EXT2_I_SIZE(&inode);
+
+ /* Allocate a bunch of blocks */
+ flags = (mode & FL_KEEP_SIZE_FLAG ? 0 :
+ EXT2_FALLOCATE_INIT_BEYOND_EOF);
+ err = ext2fs_fallocate(fs, flags, fh->ino,
+ (struct ext2_inode *)&inode,
+ ~0ULL, start, end - start + 1);
+ if (err && err != EXT2_ET_BLOCK_ALLOC_FAIL)
+ return translate_error(fs, fh->ino, err);
+
+ /* Update i_size */
+ if (!(mode & FL_KEEP_SIZE_FLAG)) {
+ if (offset + len > fsize) {
+ err = ext2fs_inode_size_set(fs,
+ (struct ext2_inode *)&inode,
+ offset + len);
+ if (err)
+ return translate_error(fs, fh->ino, err);
+ }
+ }
+
+ err = update_mtime(fs, fh->ino, &inode);
+ if (err)
+ return err;
+
+ err = ext2fs_write_inode_full(fs, fh->ino, (struct ext2_inode *)&inode,
+ sizeof(inode));
+ if (err)
+ return translate_error(fs, fh->ino, err);
+
+ return err;
}
static errcode_t clean_block_middle(ext2_filsys fs, ext2_ino_t ino,
next prev parent reply other threads:[~2014-09-13 22:14 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-13 22:11 [PATCH 00/34] e2fsprogs Summer 2014 patchbomb, part 6 Darrick J. Wong
2014-09-13 22:11 ` [PATCH 01/34] e2fsck: offer to clear overlapping extents Darrick J. Wong
2014-09-19 1:45 ` Theodore Ts'o
2014-09-13 22:11 ` [PATCH 02/34] e2fsck: fix sliding the directory block down on bigalloc Darrick J. Wong
2014-09-19 1:45 ` Theodore Ts'o
2014-09-13 22:11 ` [PATCH 03/34] misc: zero s_jnl_blocks when adding journal online or removing external journal Darrick J. Wong
2014-09-19 1:45 ` Theodore Ts'o
2014-09-13 22:11 ` [PATCH 04/34] libext2fs: ext2fs_new_block2() should call alloc_block hook Darrick J. Wong
2014-09-13 22:11 ` [PATCH 05/34] debugfs: manage needs_recover feature when messing with the journal Darrick J. Wong
2014-09-19 6:01 ` Theodore Ts'o
2014-09-13 22:11 ` [PATCH 06/34] debugfs: add LIBINTL to debugfs link command Darrick J. Wong
2014-09-19 4:46 ` Theodore Ts'o
2014-10-17 21:07 ` Darrick J. Wong
2014-10-18 16:10 ` Theodore Ts'o
2014-09-13 22:11 ` [PATCH 07/34] ext2fs: add readahead method to improve scanning Darrick J. Wong
2014-09-19 16:15 ` Theodore Ts'o
2014-09-13 22:12 ` [PATCH 08/34] libext2fs/e2fsck: provide routines to read-ahead metadata Darrick J. Wong
2014-09-13 22:12 ` [PATCH 09/34] e2fsck: read-ahead metadata during passes 1, 2, and 4 Darrick J. Wong
2014-09-13 22:12 ` [PATCH 10/34] dumpe2fs: provide a machine-readable group-only mode Darrick J. Wong
2014-09-19 16:17 ` Theodore Ts'o
2014-09-13 22:12 ` [PATCH 11/34] dumpe2fs: output cleanup Darrick J. Wong
2014-09-19 16:22 ` Theodore Ts'o
2014-09-19 20:00 ` Darrick J. Wong
2014-10-13 18:04 ` Darrick J. Wong
2014-09-13 22:12 ` [PATCH 12/34] misc: move check_plausibility into a separate file Darrick J. Wong
2014-09-19 22:16 ` Theodore Ts'o
2014-09-13 22:12 ` [PATCH 13/34] misc: add plausibility checks to debugfs/tune2fs/dumpe2fs/e2fsck Darrick J. Wong
2014-09-19 23:00 ` Theodore Ts'o
2014-09-13 22:12 ` [PATCH 14/34] misc: use libmagic when libblkid can't identify something Darrick J. Wong
2014-09-21 5:29 ` Theodore Ts'o
2014-09-13 22:12 ` [PATCH 15/34] libext2fs: support BLKZEROOUT/FALLOC_FL_ZERO_RANGE in ext2fs_zero_blocks Darrick J. Wong
2014-09-22 2:51 ` Theodore Ts'o
2014-09-29 18:58 ` Darrick J. Wong
2014-10-14 2:58 ` Darrick J. Wong
2014-10-18 16:32 ` Theodore Ts'o
2014-10-20 23:37 ` Darrick J. Wong
2014-09-13 22:12 ` [PATCH 16/34] libext2fs/e2fsck: refactor everyone who writes zero blocks to disk Darrick J. Wong
2014-10-13 10:09 ` Theodore Ts'o
2014-10-13 17:09 ` Darrick J. Wong
2014-09-13 22:13 ` [PATCH 17/34] libext2fs: support allocating uninit blocks in bmap2() Darrick J. Wong
2014-10-13 14:35 ` Theodore Ts'o
2014-10-13 16:56 ` Darrick J. Wong
2014-10-13 18:34 ` Darrick J. Wong
2014-09-13 22:13 ` [PATCH 18/34] libext2fs: file IO routines should handle uninit blocks Darrick J. Wong
2014-09-13 22:13 ` [PATCH 19/34] resize2fs: convert fs to and from 64bit mode Darrick J. Wong
2014-09-14 17:34 ` TR Reardon
2014-09-14 17:50 ` Darrick J. Wong
2014-09-13 22:13 ` [PATCH 20/34] resize2fs: adjust reserved_gdt_blocks when changing group descriptor size Darrick J. Wong
2014-09-13 22:13 ` [PATCH 21/34] tests: test resize2fs 32->64 and 64->32bit conversion code Darrick J. Wong
2014-09-13 22:13 ` [PATCH 22/34] libext2fs: find inode goal when allocating blocks Darrick J. Wong
2014-09-13 22:13 ` [PATCH 23/34] libext2fs: find/alloc a range of empty blocks Darrick J. Wong
2014-09-13 22:13 ` [PATCH 24/34] libext2fs: add new hooks to support large allocations Darrick J. Wong
2014-09-13 22:14 ` [PATCH 25/34] libext2fs: implement fallocate Darrick J. Wong
2014-09-13 22:14 ` [PATCH 26/34] libext2fs: use fallocate for creating journals and hugefiles Darrick J. Wong
2014-09-13 22:14 ` [PATCH 27/34] debugfs: implement fallocate Darrick J. Wong
2014-09-13 22:14 ` [PATCH 28/34] tests: test debugfs punch command Darrick J. Wong
2014-09-19 16:26 ` Theodore Ts'o
2014-09-19 20:01 ` Darrick J. Wong
2014-09-13 22:14 ` [PATCH 30/34] fuse2fs: translate ACL structures Darrick J. Wong
2014-09-13 22:14 ` [PATCH 31/34] fuse2fs: handle 64-bit dates correctly Darrick J. Wong
2014-09-13 22:14 ` Darrick J. Wong [this message]
2014-09-13 22:15 ` [PATCH 34/34] tests: enable using fuse2fs with metadata checksum test Darrick J. Wong
2014-09-14 17:19 ` [PATCH 35/34] e2fsck: free bh when descriptor block checksum fails Darrick J. Wong
2014-09-14 19:11 ` Eric Sandeen
2014-09-19 1:46 ` Theodore Ts'o
2014-09-18 19:09 ` [PATCH 36/34] misc: fix Coverity complaints Darrick J. Wong
2014-09-19 1:47 ` Theodore Ts'o
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