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| author | David S. Miller <davem@davemloft.net> | 2010-03-15 16:23:54 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-03-15 16:23:54 -0700 |
| commit | 4961e02f1999e1c3468c09b2669c94d7c3ae82a8 (patch) | |
| tree | 44c15abb09d7ba5e17a9aba95ee246648b1c1a8a /mm/fadvise.c | |
| parent | d14a0ebda7d3daede1a99c01527affb9ceaa4c22 (diff) | |
| parent | a3d3203e4bb40f253b1541e310dc0f9305be7c84 (diff) | |
| download | op-kernel-dev-4961e02f1999e1c3468c09b2669c94d7c3ae82a8.zip op-kernel-dev-4961e02f1999e1c3468c09b2669c94d7c3ae82a8.tar.gz | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'mm/fadvise.c')
| -rw-r--r-- | mm/fadvise.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/mm/fadvise.c b/mm/fadvise.c index e433592..8d723c9 100644 --- a/mm/fadvise.c +++ b/mm/fadvise.c @@ -77,12 +77,20 @@ SYSCALL_DEFINE(fadvise64_64)(int fd, loff_t offset, loff_t len, int advice) switch (advice) { case POSIX_FADV_NORMAL: file->f_ra.ra_pages = bdi->ra_pages; + spin_lock(&file->f_lock); + file->f_mode &= ~FMODE_RANDOM; + spin_unlock(&file->f_lock); break; case POSIX_FADV_RANDOM: - file->f_ra.ra_pages = 0; + spin_lock(&file->f_lock); + file->f_mode |= FMODE_RANDOM; + spin_unlock(&file->f_lock); break; case POSIX_FADV_SEQUENTIAL: file->f_ra.ra_pages = bdi->ra_pages * 2; + spin_lock(&file->f_lock); + file->f_mode &= ~FMODE_RANDOM; + spin_unlock(&file->f_lock); break; case POSIX_FADV_WILLNEED: if (!mapping->a_ops->readpage) { |
