ocfs2: Wrap access of directory allocations with ip_alloc_sem.

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OCFS2_I(inode)->ip_alloc_sem is a read-write semaphore protecting
local concurrent access of ocfs2 inodes.  However, ocfs2 directories were
not taking the semaphore while they accessed or modified the allocation
tree.

ocfs2_extend_dir() needs to take the semaphore in a write mode when it
adds to the allocation.  All other directory users get there via
ocfs2_bread(), which takes the semaphore in read mode.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

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Joel Becker 2007-03-28 18:27:07 -07:00 • committed by Mark Fasheh

parent 6cb129f567

commit ee19a77956

2 changed files with 8 additions and 1 deletions

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7

fs/ocfs2/dir.c

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2

fs/ocfs2/inode.c

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