Eric Lee / smarc-fsl-linux-kernel

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Commit b10099792b6276c31cee4c021e0a5d3f9a9e33ed

Authored by Miklos Szeredi
Committed by Linus Torvalds
1 parent e00d2c2d4a

fuse: fix page invalidation 

Other than truncate, there are two cases, when fuse tries to get rid
of cached pages:

 a) in open, if KEEP_CACHE flag is not set
 b) in getattr, if file size changed spontaneously

Until now invalidate_mapping_pages() were used, which didn't get rid
of mapped pages.  This is wrong, and becomes more wrong as dirty pages
are introduced.  So instead properly invalidate all pages with
invalidate_inode_pages2().

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Showing 2 changed files with 2 additions and 2 deletions Side-by-side Diff

... ... @@ -87,7 +87,7 @@
87 87 if (outarg->open_flags & FOPEN_DIRECT_IO)
88 88 file->f_op = &fuse_direct_io_file_operations;
89 89 if (!(outarg->open_flags & FOPEN_KEEP_CACHE))
90   - invalidate_mapping_pages(inode->i_mapping, 0, -1);
  90 + invalidate_inode_pages2(inode->i_mapping);
91 91 ff->fh = outarg->fh;
92 92 file->private_data = fuse_file_get(ff);
93 93 }
... ... @@ -143,7 +143,7 @@
143 143 if (S_ISREG(inode->i_mode) && oldsize != attr->size) {
144 144 if (attr->size < oldsize)
145 145 fuse_truncate(inode->i_mapping, attr->size);
146   - invalidate_mapping_pages(inode->i_mapping, 0, -1);
  146 + invalidate_inode_pages2(inode->i_mapping);
147 147 }
148 148 }
149 149