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| author | Joel Becker <joel.becker@oracle.com> | 2007-03-29 01:27:07 (GMT) |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2007-05-02 22:07:42 (GMT) |
| commit | ee19a77956cb65c5da54d85a5efefe50b39fa6e5 (patch) | |
| tree | 1ce4410333f2ad72460cb742d3f5974acb6f9caa /Documentation/hayes-esp.txt | |
| parent | 6cb129f5675c39944e5fe18fd2530a2eb771b754 (diff) | |
| download | linux-fsl-qoriq-ee19a77956cb65c5da54d85a5efefe50b39fa6e5.tar.xz | |
ocfs2: Wrap access of directory allocations with ip_alloc_sem.
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>
Diffstat (limited to 'Documentation/hayes-esp.txt')
0 files changed, 0 insertions, 0 deletions