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Jan Kara 695f6ae0dc ext3: avoid false EIO errors ... Sometimes block_write_begin() can map buffers in a page but later we fail to copy data into those buffers (because the source page has been paged out in the mean time). We then end up with !uptodate mapped buffers. To add a bit more to the confusion, block_write_end() does not commit any data (and thus does not any mark buffers as uptodate) if we didn't succeed with copying all the data. Commit f4fc66a894 (ext3: convert to new aops) missed these cases and thus we were inserting non-uptodate buffers to transaction's list which confuses JBD code and it reports IO errors, aborts a transaction and generally makes users afraid about their data ;-P. This patch fixes the problem by reorganizing ext3_..._write_end() code to first call block_write_end() to mark buffers with valid data uptodate and after that we file only uptodate buffers to transaction's lists. We also fix a problem where we could leave blocks allocated beyond i_size (i_disksize in fact) because of failed write. We now add inode to orphan list when write fails (to be safe in case we crash) and then truncate blocks beyond i_size in a separate transaction. Signed-off-by: Jan Kara <jack@suse.cz> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		16 years ago
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Kconfig	fs/Kconfig: move ext2, ext3, ext4, JBD, JBD2 out	17 years ago
Makefile	…
acl.c	[PATCH] sanitize ->permission() prototype	17 years ago
acl.h	[PATCH] sanitize ->permission() prototype	17 years ago
balloc.c	ext3: Use lowercase names of quota functions	16 years ago
bitmap.c	fs: mark nibblemap const	18 years ago
dir.c	ext3: remove the BKL in ext3/ioctl.c	16 years ago
ext3_jbd.c	ext3: replace remaining __FUNCTION__ occurrences	17 years ago
file.c	ext3: remove the BKL in ext3/ioctl.c	16 years ago
fsync.c	ext3: fdatasync should skip metadata writeout when overwriting	17 years ago
hash.c	ext3: Add support for non-native signed/unsigned htree hash algorithms	17 years ago
ialloc.c	ext3: Use lowercase names of quota functions	16 years ago
inode.c	ext3: avoid false EIO errors	16 years ago
ioctl.c	ext3: remove the BKL in ext3/ioctl.c	16 years ago
namei.c	ext3: return -EIO not -ESTALE on directory traversal through deleted inode	16 years ago
namei.h	…
resize.c	ext3: don't try to resize if there are no reserved gdt blocks left	17 years ago
super.c	ext3: Use lowercase names of quota functions	16 years ago
symlink.c	…
xattr.c	ext3: Use lowercase names of quota functions	16 years ago
xattr.h	make ext3_xattr_list() static	17 years ago
xattr_security.c	ext3: remove double definitions of xattr macros	17 years ago
xattr_trusted.c	ext3: remove double definitions of xattr macros	17 years ago
xattr_user.c	ext3: remove double definitions of xattr macros	17 years ago