diff options
| author | Guillaume Chazarain <guichaz@yahoo.fr> | 2007-05-08 00:23:25 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 11:14:57 -0700 |
| commit | 3e9f45bd18191bbd05468b19b7064b8da8262aba (patch) | |
| tree | 06c790a9cb1afc83d170447a277e51f5a1a5f303 | |
| parent | c83e44842074a87614c78eca70fa6467b0bc3c4a (diff) | |
| download | lwn-3e9f45bd18191bbd05468b19b7064b8da8262aba.tar.gz lwn-3e9f45bd18191bbd05468b19b7064b8da8262aba.zip | |
Factor outstanding I/O error handling
Cleanup: setting an outstanding error on a mapping was open coded too many
times. Factor it out in mapping_set_error().
Signed-off-by: Guillaume Chazarain <guichaz@yahoo.fr>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/gfs2/glops.c | 5 | ||||
| -rw-r--r-- | fs/mpage.c | 16 | ||||
| -rw-r--r-- | include/linux/pagemap.h | 11 | ||||
| -rw-r--r-- | mm/page-writeback.c | 7 | ||||
| -rw-r--r-- | mm/vmscan.c | 8 |
5 files changed, 17 insertions, 30 deletions
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c index 39c8ae23bd9c..7b82657a9910 100644 --- a/fs/gfs2/glops.c +++ b/fs/gfs2/glops.c @@ -163,10 +163,7 @@ static void inode_go_sync(struct gfs2_glock *gl) if (ip) { struct address_space *mapping = ip->i_inode.i_mapping; int error = filemap_fdatawait(mapping); - if (error == -ENOSPC) - set_bit(AS_ENOSPC, &mapping->flags); - else if (error) - set_bit(AS_EIO, &mapping->flags); + mapping_set_error(mapping, error); } clear_bit(GLF_DIRTY, &gl->gl_flags); gfs2_ail_empty_gl(gl); diff --git a/fs/mpage.c b/fs/mpage.c index 692a3e578fc8..fa2441f57b41 100644 --- a/fs/mpage.c +++ b/fs/mpage.c @@ -663,12 +663,7 @@ confused: /* * The caller has a ref on the inode, so *mapping is stable */ - if (*ret) { - if (*ret == -ENOSPC) - set_bit(AS_ENOSPC, &mapping->flags); - else - set_bit(AS_EIO, &mapping->flags); - } + mapping_set_error(mapping, *ret); out: return bio; } @@ -776,14 +771,7 @@ retry: if (writepage) { ret = (*writepage)(page, wbc); - if (ret) { - if (ret == -ENOSPC) - set_bit(AS_ENOSPC, - &mapping->flags); - else - set_bit(AS_EIO, - &mapping->flags); - } + mapping_set_error(mapping, ret); } else { bio = __mpage_writepage(bio, page, get_block, &last_block_in_bio, &ret, wbc, diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index b4def5e083ed..8a83537d6978 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -11,6 +11,7 @@ #include <linux/compiler.h> #include <asm/uaccess.h> #include <linux/gfp.h> +#include <linux/bitops.h> /* * Bits in mapping->flags. The lower __GFP_BITS_SHIFT bits are the page @@ -19,6 +20,16 @@ #define AS_EIO (__GFP_BITS_SHIFT + 0) /* IO error on async write */ #define AS_ENOSPC (__GFP_BITS_SHIFT + 1) /* ENOSPC on async write */ +static inline void mapping_set_error(struct address_space *mapping, int error) +{ + if (error) { + if (error == -ENOSPC) + set_bit(AS_ENOSPC, &mapping->flags); + else + set_bit(AS_EIO, &mapping->flags); + } +} + static inline gfp_t mapping_gfp_mask(struct address_space * mapping) { return (__force gfp_t)mapping->flags & __GFP_BITS_MASK; diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 029dfad5a235..63cd88840eb2 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -683,12 +683,7 @@ retry: } ret = (*writepage)(page, wbc); - if (ret) { - if (ret == -ENOSPC) - set_bit(AS_ENOSPC, &mapping->flags); - else - set_bit(AS_EIO, &mapping->flags); - } + mapping_set_error(mapping, ret); if (unlikely(ret == AOP_WRITEPAGE_ACTIVATE)) unlock_page(page); diff --git a/mm/vmscan.c b/mm/vmscan.c index 56651a10c366..1c8e75a1cfcd 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -284,12 +284,8 @@ static void handle_write_error(struct address_space *mapping, struct page *page, int error) { lock_page(page); - if (page_mapping(page) == mapping) { - if (error == -ENOSPC) - set_bit(AS_ENOSPC, &mapping->flags); - else - set_bit(AS_EIO, &mapping->flags); - } + if (page_mapping(page) == mapping) + mapping_set_error(mapping, error); unlock_page(page); } |