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The extra race-with-truncate-then-retry logic around
ext3_get_block_handle(), which was inherited from ext2, becomes unecessary
for ext3, since we have already obtained the ei->truncate_sem in
ext3_get_block_handle() before calling ext3_alloc_branch(). The
ei->truncate_sem is already there to block concurrent truncate and block
allocation on the same inode. So the inode's indirect addressing tree
won't be changed after we grab that semaphore.
We could, after get the semaphore, re-verify the branch is up-to-date or
not. If it has been changed, then get the updated branch. If we still
need block allocation, we will have a safe version of the branch to work
with in the ext3_find_goal()/ext3_splice_branch().
The code becomes more readable after remove those retry logic. The patch
also clean up some gotos in ext3_get_block_handle() to make it more
readable.
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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From: Andreas Gruenbacher <agruen@suse.de>
ext[23]_get_acl will return an error when reading the attribute fails or
out-of-memory occurs. Catch this case.
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
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