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| author | Hugh Dickins <hugh@veritas.com> | 2008-02-04 22:28:43 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-05 09:44:14 -0800 |
| commit | 27d54b398ec0edea0e7417f003171017300e0efc (patch) | |
| tree | 2167c058ab0734bbb424ec27b2dc19d58fa7befd /mm | |
| parent | 02098feaa42b2e0087fbbe6c6ab9a23e4653b16a (diff) | |
| download | op-kernel-dev-27d54b398ec0edea0e7417f003171017300e0efc.zip op-kernel-dev-27d54b398ec0edea0e7417f003171017300e0efc.tar.gz | |
shmem: SGP_QUICK and SGP_FAULT redundant
Remove SGP_QUICK from the sgp_type enum: it was for shmem_populate and has no
users now. Remove SGP_FAULT from the enum: SGP_CACHE does just as well (and
shmem_getpage is about to return with page always locked).
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/shmem.c | 8 |
1 files changed, 2 insertions, 6 deletions
@@ -78,11 +78,9 @@ /* Flag allocation requirements to shmem_getpage and shmem_swp_alloc */ enum sgp_type { - SGP_QUICK, /* don't try more than file page cache lookup */ SGP_READ, /* don't exceed i_size, don't allocate page */ SGP_CACHE, /* don't exceed i_size, may allocate page */ SGP_WRITE, /* may exceed i_size, may allocate page */ - SGP_FAULT, /* same as SGP_CACHE, return with page locked */ }; static int shmem_getpage(struct inode *inode, unsigned long idx, @@ -1116,8 +1114,6 @@ repeat: if (filepage && PageUptodate(filepage)) goto done; error = 0; - if (sgp == SGP_QUICK) - goto failed; gfp = mapping_gfp_mask(mapping); spin_lock(&info->lock); @@ -1292,7 +1288,7 @@ repeat: done: if (*pagep != filepage) { *pagep = filepage; - if (sgp != SGP_FAULT) + if (sgp != SGP_CACHE) unlock_page(filepage); } @@ -1315,7 +1311,7 @@ static int shmem_fault(struct vm_area_struct *vma, struct vm_fault *vmf) if (((loff_t)vmf->pgoff << PAGE_CACHE_SHIFT) >= i_size_read(inode)) return VM_FAULT_SIGBUS; - error = shmem_getpage(inode, vmf->pgoff, &vmf->page, SGP_FAULT, &ret); + error = shmem_getpage(inode, vmf->pgoff, &vmf->page, SGP_CACHE, &ret); if (error) return ((error == -ENOMEM) ? VM_FAULT_OOM : VM_FAULT_SIGBUS); |
