diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/Kconfig | 15 | ||||
| -rw-r--r-- | fs/dcache.c | 1 | ||||
| -rw-r--r-- | fs/stack.c | 5 |
3 files changed, 13 insertions, 8 deletions
diff --git a/fs/Kconfig b/fs/Kconfig index 19891aab9c6e..9fe0b349f4cd 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -127,14 +127,21 @@ config TMPFS_POSIX_ACL select TMPFS_XATTR select GENERIC_ACL help - POSIX Access Control Lists (ACLs) support permissions for users and - groups beyond the owner/group/world scheme. + POSIX Access Control Lists (ACLs) support additional access rights + for users and groups beyond the standard owner/group/world scheme, + and this option selects support for ACLs specifically for tmpfs + filesystems. + + If you've selected TMPFS, it's possible that you'll also need + this option as there are a number of Linux distros that require + POSIX ACL support under /dev for certain features to work properly. + For example, some distros need this feature for ALSA-related /dev + files for sound to work properly. In short, if you're not sure, + say Y. To learn more about Access Control Lists, visit the POSIX ACLs for Linux website <http://acl.bestbits.at/>. - If you don't know what Access Control Lists are, say N. - config TMPFS_XATTR bool "Tmpfs extended attributes" depends on TMPFS diff --git a/fs/dcache.c b/fs/dcache.c index 2347cdb15abb..c83cae19161e 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -795,6 +795,7 @@ relock: /** * prune_dcache_sb - shrink the dcache + * @sb: superblock * @nr_to_scan: number of entries to try to free * * Attempt to shrink the superblock dcache LRU by @nr_to_scan entries. This is diff --git a/fs/stack.c b/fs/stack.c index 4a6f7f440658..b4f2ab48a61f 100644 --- a/fs/stack.c +++ b/fs/stack.c @@ -29,10 +29,7 @@ void fsstack_copy_inode_size(struct inode *dst, struct inode *src) * * We don't actually know what locking is used at the lower level; * but if it's a filesystem that supports quotas, it will be using - * i_lock as in inode_add_bytes(). tmpfs uses other locking, and - * its 32-bit is (just) able to exceed 2TB i_size with the aid of - * holes; but its i_blocks cannot carry into the upper long without - * almost 2TB swap - let's ignore that case. + * i_lock as in inode_add_bytes(). */ if (sizeof(i_blocks) > sizeof(long)) spin_lock(&src->i_lock); |