Mingming ba230c3f6d ext4: Fix return value of ext4_split_unwritten_extents() to fix direct I/O ... To prepare for a direct I/O write, we need to split the unwritten extents before submitting the I/O. When no extents needed to be split, ext4_split_unwritten_extents() was incorrectly returning 0 instead of the size of uninitialized extents. This bug caused the wrong return value sent back to VFS code when it gets called from async IO path, leading to an unnecessary fall back to buffered IO. This bug also hid the fact that the check to see whether or not a split would be necessary was incorrect; we can only skip splitting the extent if the write completely covers the uninitialized extent. Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>		2009-11-06 04:01:23 -05:00
..
acl.c	ext[234]: move over to 'check_acl' permission model	2009-09-08 11:09:04 -07:00
acl.h	ext[234]: move over to 'check_acl' permission model	2009-09-08 11:09:04 -07:00
balloc.c	ext4: open-code ext4_mb_update_group_info	2009-08-17 23:51:29 -04:00
bitmap.c	ext4: Change unsigned long to unsigned int	2008-11-05 00:14:04 -05:00
block_validity.c	ext4: Add a comprehensive block validity check to ext4_get_blocks()	2009-05-17 15:38:01 -04:00
dir.c	ext4: Define a new set of flags for ext4_get_blocks()	2009-05-14 00:58:52 -04:00
ext4_extents.h	ext4: Split uninitialized extents for direct I/O	2009-09-28 15:49:08 -04:00
ext4_jbd2.c	ext4: Assure that metadata blocks are written during fsync in no journal mode	2009-09-12 13:41:55 -04:00
ext4_jbd2.h	ext4: Handle nested ext4_journal_start/stop calls without a journal	2009-09-29 11:01:03 -04:00
ext4.h	ext4: skip conversion of uninit extents after direct IO if there isn't any	2009-11-10 10:48:04 -05:00
extents.c	ext4: Fix return value of ext4_split_unwritten_extents() to fix direct I/O	2009-11-06 04:01:23 -05:00
file.c	const: mark struct vm_struct_operations	2009-09-27 11:39:25 -07:00
fsync.c	ext4: async direct IO for holes and fallocate support	2009-09-28 15:48:29 -04:00
hash.c	ext4: Add support for non-native signed/unsigned htree hash algorithms	2008-10-28 13:21:44 -04:00
ialloc.c	ext4: fix build warning when EXT4FS_DEBUG is on	2009-07-27 21:44:40 -04:00
inode.c	ext4: skip conversion of uninit extents after direct IO if there isn't any	2009-11-10 10:48:04 -05:00
ioctl.c	ext4: Return exchanged blocks count to user space in failure	2009-09-05 22:46:29 -04:00
Kconfig	ext4: drop ext4dev compat	2009-10-01 02:21:07 -04:00
Makefile	ext4: online defrag -- Add EXT4_IOC_MOVE_EXT ioctl	2009-06-17 19:24:03 -04:00
mballoc.c	ext4: Use tracepoints for mb_history trace file	2009-09-30 00:32:42 -04:00
mballoc.h	ext4: Use tracepoints for mb_history trace file	2009-09-30 00:32:42 -04:00
migrate.c	ext4: Split uninitialized extents for direct I/O	2009-09-28 15:49:08 -04:00
move_extent.c	ext4: EXT4_IOC_MOVE_EXT: Check for different original and donor inodes first	2009-09-28 15:58:29 -04:00
namei.c	ext4: Handle nested ext4_journal_start/stop calls without a journal	2009-09-29 11:01:03 -04:00
resize.c	ext4: Clarify the locking details in mballoc	2009-09-09 23:50:17 -04:00
super.c	Revert "ext4: Remove journal_checksum mount option and enable it by default"	2009-11-02 10:15:27 -08:00
symlink.c	ext4: Rename ext4dev to ext4	2008-10-10 20:02:48 -04:00
xattr_security.c	ext4: move headers out of include/linux	2008-04-29 18:13:32 -04:00
xattr_trusted.c	ext4: remove double definitions of xattr macros	2008-07-11 19:27:31 -04:00
xattr_user.c	ext4: remove double definitions of xattr macros	2008-07-11 19:27:31 -04:00
xattr.c	ext4: limit block allocations for indirect-block files to < 2^32	2009-09-16 14:45:10 -04:00
xattr.h	ext4: Rename ext4dev to ext4	2008-10-10 20:02:48 -04:00