Jan Kara 0f0a25bf51 ext4: fix trimming starting with block 0 with small blocksize ... When s_first_data_block is not zero (which happens e.g. when block size is 1KB) and trim ioctl is called to start trimming from block 0, the math in ext4_get_group_no_and_offset() overflows. The overall result is that ioctl returns EINVAL which is kind of unexpected and we probably don't want userspace tools to bother with internal details of filesystem structure. So just silently increase starting offset (and shorten length) when starting block is below s_first_data_block. CC: Lukas Czerner <lczerner@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>		2011-01-11 15:16:31 -05:00
..
acl.c	ext4: update ctime when changing the file's permission by setfacl	2010-06-15 12:19:59 -04:00
acl.h
balloc.c	ext4: replace i_delalloc_reserved_flag with EXT4_STATE_DELALLOC_RESERVED	2011-01-10 12:12:36 -05:00
bitmap.c
block_validity.c	ext4: rename {exit,init}_ext4_*() to ext4_{exit,init}_*()	2010-10-27 21:30:14 -04:00
dir.c	ext4: Use ext4_error_file() to print the pathname to the corrupted inode	2011-01-10 12:10:55 -05:00
ext4_extents.h	ext4: drop ec_type from the ext4_ext_cache structure	2011-01-10 12:13:26 -05:00
ext4_jbd2.c	ext4: Pass line numbers to ext4_error() and friends	2010-07-27 11:56:40 -04:00
ext4_jbd2.h	ext4: dynamically allocate the jbd2_inode in ext4_inode_info as necessary	2011-01-10 12:29:43 -05:00
ext4.h	ext4: flush the i_completed_io_list during ext4_truncate	2011-01-10 12:47:05 -05:00
extents.c	ext4: don't pass entire map to check_eofblocks_fl	2011-01-10 13:03:35 -05:00
file.c	ext4: dynamically allocate the jbd2_inode in ext4_inode_info as necessary	2011-01-10 12:29:43 -05:00
fsync.c	ext4: flush the i_completed_io_list during ext4_truncate	2011-01-10 12:47:05 -05:00
hash.c
ialloc.c	ext4: drop i_state_flags on architectures with 64-bit longs	2011-01-10 12:18:25 -05:00
inode.c	ext4: fix memory leak in ext4_free_branches	2011-01-10 12:51:28 -05:00
ioctl.c	ext4: Add EXT4_IOC_TRIM ioctl to handle batched discard	2010-11-19 21:47:07 -05:00
Kconfig
Makefile	ext4: use bio layer instead of buffer layer in mpage_da_submit_io	2010-10-27 21:30:10 -04:00
mballoc.c	ext4: fix trimming starting with block 0 with small blocksize	2011-01-11 15:16:31 -05:00
mballoc.h
migrate.c	ext4: ext4_ext_migrate should use NULL not 0	2011-01-10 12:11:00 -05:00
move_extent.c	ext4: rename {ext,idx}_pblock and inline small extent functions	2010-10-27 21:30:14 -04:00
namei.c	ext4: add error checking to calls to ext4_handle_dirty_metadata()	2011-01-10 12:46:59 -05:00
page-io.c	ext4: test the correct variable in ext4_init_pageio()	2011-01-10 12:10:44 -05:00
resize.c	ext4: add error checking to calls to ext4_handle_dirty_metadata()	2011-01-10 12:46:59 -05:00
super.c	ext4: fix uninitialized variable in ext4_register_li_request	2011-01-10 12:30:17 -05:00
symlink.c
xattr_security.c	ext4: constify xattr_handler	2010-05-21 18:31:19 -04:00
xattr_trusted.c	ext4: constify xattr_handler	2010-05-21 18:31:19 -04:00
xattr_user.c	ext4: constify xattr_handler	2010-05-21 18:31:19 -04:00
xattr.c	ext2,ext3,ext4: clarify comment for extN_xattr_set_handle	2011-01-10 12:10:30 -05:00
xattr.h	ext4: fix compile with CONFIG_EXT4_FS_XATTR disabled	2010-10-28 09:29:17 -07:00