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author | Dave Chinner <dchinner@redhat.com> | 2012-04-23 15:58:56 +1000 |
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committer | Ben Myers <bpm@sgi.com> | 2012-05-14 16:20:52 -0500 |
commit | aa5c158ec97bd4014f47a2bc0150fb6b20e6c48b (patch) | |
tree | 8c79791167a5d659949952ad11a08ce325eb025c /mm | |
parent | 7ca790a507a9288ebedab90a8e40b9afa8e4e949 (diff) | |
download | linux-aa5c158ec97bd4014f47a2bc0150fb6b20e6c48b.tar.bz2 |
xfs: kill XBF_DONTBLOCK
Just about all callers of xfs_buf_read() and xfs_buf_get() use XBF_DONTBLOCK.
This is used to make memory allocation use GFP_NOFS rather than GFP_KERNEL to
avoid recursion through memory reclaim back into the filesystem.
All the blocking get calls in growfs occur inside a transaction, even though
they are no part of the transaction, so all allocation will be GFP_NOFS due to
the task flag PF_TRANS being set. The blocking read calls occur during log
recovery, so they will probably be unaffected by converting to GFP_NOFS
allocations.
Hence make XBF_DONTBLOCK behaviour always occur for buffers and kill the flag.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions