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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-12-20 04:54:54 -0500 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-12-20 04:54:54 -0500 |
commit | 93b8eef1c098efbea2f1fc0be7e3c681f259a7e7 (patch) | |
tree | 462cc8c2bc07bbc825dab2a200891a28d8643329 /Documentation/filesystems/Locking | |
parent | Input: libps2 - handle 0xfc responses from devices (diff) | |
parent | Linux 2.6.28-rc9 (diff) | |
download | linux-dev-93b8eef1c098efbea2f1fc0be7e3c681f259a7e7.tar.xz linux-dev-93b8eef1c098efbea2f1fc0be7e3c681f259a7e7.zip |
Merge commit 'v2.6.28-rc9' into next
Diffstat (limited to 'Documentation/filesystems/Locking')
-rw-r--r-- | Documentation/filesystems/Locking | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index 8362860e21a7..23d2f4460deb 100644 --- a/Documentation/filesystems/Locking +++ b/Documentation/filesystems/Locking @@ -161,8 +161,12 @@ prototypes: int (*set_page_dirty)(struct page *page); int (*readpages)(struct file *filp, struct address_space *mapping, struct list_head *pages, unsigned nr_pages); - int (*prepare_write)(struct file *, struct page *, unsigned, unsigned); - int (*commit_write)(struct file *, struct page *, unsigned, unsigned); + int (*write_begin)(struct file *, struct address_space *mapping, + loff_t pos, unsigned len, unsigned flags, + struct page **pagep, void **fsdata); + int (*write_end)(struct file *, struct address_space *mapping, + loff_t pos, unsigned len, unsigned copied, + struct page *page, void *fsdata); sector_t (*bmap)(struct address_space *, sector_t); int (*invalidatepage) (struct page *, unsigned long); int (*releasepage) (struct page *, int); @@ -180,8 +184,6 @@ sync_page: no maybe writepages: no set_page_dirty no no readpages: no -prepare_write: no yes yes -commit_write: no yes yes write_begin: no locks the page yes write_end: no yes, unlocks yes perform_write: no n/a yes @@ -191,7 +193,7 @@ releasepage: no yes direct_IO: no launder_page: no yes - ->prepare_write(), ->commit_write(), ->sync_page() and ->readpage() + ->write_begin(), ->write_end(), ->sync_page() and ->readpage() may be called from the request handler (/dev/loop). ->readpage() unlocks the page, either synchronously or via I/O |