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Lukas Czerner e681c047e4 ext4: Add EXT4_IOC_TRIM ioctl to handle batched discard ... Filesystem independent ioctl was rejected as not common enough to be in core vfs ioctl. Since we still need to access to this functionality this commit adds ext4 specific ioctl EXT4_IOC_TRIM to dispatch ext4_trim_fs(). It takes fstrim_range structure as an argument. fstrim_range is definec in the include/linux/fs.h and its definition is as follows. struct fstrim_range { __u64 start; __u64 len; __u64 minlen; } start - first Byte to trim len - number of Bytes to trim from start minlen - minimum extent length to trim, free extents shorter than this number of Bytes will be ignored. This will be rounded up to fs block size. After the FITRIM is done, the number of actually discarded Bytes is stored in fstrim_range.len to give the user better insight on how much storage space has been really released for wear-leveling. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>		14 years ago
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Kconfig	ext4: Don't ask about supporting ext2/3 in ext4 if ext4 is not configured	15 years ago
Makefile	ext4: use bio layer instead of buffer layer in mpage_da_submit_io	14 years ago
acl.c	ext4: update ctime when changing the file's permission by setfacl	15 years ago
acl.h	ext[234]: move over to 'check_acl' permission model	16 years ago
balloc.c	ext4: rename mark_bitmap_end() to ext4_mark_bitmap_end()	14 years ago
bitmap.c	…
block_validity.c	ext4: rename {exit,init}_ext4_*() to ext4_{exit,init}_*()	14 years ago
dir.c	ext4: improve llseek error handling for overly large seek offsets	14 years ago
ext4.h	ext4: fix potential race when freeing ext4_io_page structures	14 years ago
ext4_extents.h	ext4: rename {ext,idx}_pblock and inline small extent functions	14 years ago
ext4_jbd2.c	ext4: Pass line numbers to ext4_error() and friends	15 years ago
ext4_jbd2.h	ext4: Pass line numbers to ext4_error() and friends	15 years ago
extents.c	Merge branch 'next' into upstream-merge	14 years ago
file.c	ext4: improve llseek error handling for overly large seek offsets	14 years ago
fsync.c	Merge branch 'next' into upstream-merge	14 years ago
hash.c	…
ialloc.c	Merge branch 'next' into upstream-merge	14 years ago
inode.c	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4	14 years ago
ioctl.c	ext4: Add EXT4_IOC_TRIM ioctl to handle batched discard	14 years ago
mballoc.c	ext4: Don't call sb_issue_discard() in ext4_free_blocks()	14 years ago
mballoc.h	ext4: consolidate in_range() definitions	15 years ago
migrate.c	ext4: rename {ext,idx}_pblock and inline small extent functions	14 years ago
move_extent.c	ext4: rename {ext,idx}_pblock and inline small extent functions	14 years ago
namei.c	Merge branch 'next' into upstream-merge	14 years ago
page-io.c	ext4: fix setting random pages PageUptodate	14 years ago
resize.c	Merge branch 'next' into upstream-merge	14 years ago
super.c	fs: Do not dispatch FITRIM through separate super_operation	14 years ago
symlink.c	ext4: symlink must be handled via filesystem specific operation	15 years ago
xattr.c	ext4: rename {exit,init}_ext4_*() to ext4_{exit,init}_*()	14 years ago
xattr.h	ext4: fix compile with CONFIG_EXT4_FS_XATTR disabled	14 years ago
xattr_security.c	ext4: constify xattr_handler	15 years ago
xattr_trusted.c	ext4: constify xattr_handler	15 years ago
xattr_user.c	ext4: constify xattr_handler	15 years ago