diff options
| author | David Howells <dhowells@redhat.com> | 2015-01-29 12:02:29 +0000 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-02-22 11:38:38 -0500 |
| commit | 44bdb5e5f6382ba88f7678d6f535f879324522ae (patch) | |
| tree | e9aab8e53a78446f60e4036cb617c9dd10655228 /fs/dcache.c | |
| parent | df1a085af1f652a02238168c4f2b730c8c90dd4a (diff) | |
| download | lwn-44bdb5e5f6382ba88f7678d6f535f879324522ae.tar.gz lwn-44bdb5e5f6382ba88f7678d6f535f879324522ae.zip | |
VFS: Split DCACHE_FILE_TYPE into regular and special types
Split DCACHE_FILE_TYPE into DCACHE_REGULAR_TYPE (dentries representing regular
files) and DCACHE_SPECIAL_TYPE (representing blockdev, chardev, FIFO and
socket files).
d_is_reg() and d_is_special() are added to detect these subtypes and
d_is_file() is left as the union of the two.
This allows a number of places that use S_ISREG(dentry->d_inode->i_mode) to
use d_is_reg(dentry) instead.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/dcache.c')
| -rw-r--r-- | fs/dcache.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index e33a0934efd7..c71e3732e53b 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -1677,7 +1677,7 @@ EXPORT_SYMBOL(d_set_fallthru); static unsigned d_flags_for_inode(struct inode *inode) { - unsigned add_flags = DCACHE_FILE_TYPE; + unsigned add_flags = DCACHE_REGULAR_TYPE; if (!inode) return DCACHE_MISS_TYPE; @@ -1690,13 +1690,21 @@ static unsigned d_flags_for_inode(struct inode *inode) else inode->i_opflags |= IOP_LOOKUP; } - } else if (unlikely(!(inode->i_opflags & IOP_NOFOLLOW))) { - if (unlikely(inode->i_op->follow_link)) + goto type_determined; + } + + if (unlikely(!(inode->i_opflags & IOP_NOFOLLOW))) { + if (unlikely(inode->i_op->follow_link)) { add_flags = DCACHE_SYMLINK_TYPE; - else - inode->i_opflags |= IOP_NOFOLLOW; + goto type_determined; + } + inode->i_opflags |= IOP_NOFOLLOW; } + if (unlikely(!S_ISREG(inode->i_mode))) + add_flags = DCACHE_SPECIAL_TYPE; + +type_determined: if (unlikely(IS_AUTOMOUNT(inode))) add_flags |= DCACHE_NEED_AUTOMOUNT; return add_flags; |