The patch titled vfs: skip inodes without pages to free in drop_pagecache_sb() has been added to the -mm tree. Its filename is vfs-skip-inodes-without-pages-to-free-in-drop_pagecache_sb.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: vfs: skip inodes without pages to free in drop_pagecache_sb() From: Jan Kara <jack@xxxxxxx> Many inodes have no pagecache, so we can avoid lots of lock-takings. Signed-off-by: Jan Kara <jack@xxxxxxx> Cc: Fengguang Wu <wfg@xxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/drop_caches.c | 2 ++ 1 file changed, 2 insertions(+) diff -puN fs/drop_caches.c~vfs-skip-inodes-without-pages-to-free-in-drop_pagecache_sb fs/drop_caches.c --- a/fs/drop_caches.c~vfs-skip-inodes-without-pages-to-free-in-drop_pagecache_sb +++ a/fs/drop_caches.c @@ -20,6 +20,8 @@ static void drop_pagecache_sb(struct sup list_for_each_entry(inode, &sb->s_inodes, i_sb_list) { if (inode->i_state & (I_FREEING|I_WILL_FREE)) continue; + if (inode->i_mapping->nrpages == 0) + continue; __iget(inode); spin_unlock(&inode_lock); __invalidate_mapping_pages(inode->i_mapping, 0, -1, true); _ Patches currently in -mm which might be from jack@xxxxxxx are git-udf.patch git-ocfs2.patch vfs-fix-lock-inversion-in-drop_pagecache_sb.patch vfs-skip-inodes-without-pages-to-free-in-drop_pagecache_sb.patch quota-do-not-allow-setting-of-quota-limits-to-too-high-values.patch quota-remove-superfluous-dquot_off-in-fs-namespacec.patch quota-various-style-cleanups.patch quota-various-style-cleanups-checkpatch-fixes.patch quota-quota-core-changes-for-quotaon-on-remount.patch quota-quota-core-changes-for-quotaon-on-remount-quota-ext3-make-ext3-handle-quotaon-on-remount.patch quota-quota-core-changes-for-quotaon-on-remount-quota-ext3-make-ext3-handle-quotaon-on-remount-checkpatch-fixes.patch quota-quota-core-changes-for-quotaon-on-remount-quota-ext4-make-ext4-handle-quotaon-on-remount.patch quota-quota-core-changes-for-quotaon-on-remount-quota-ext4-make-ext4-handle-quotaon-on-remount-checkpatch-fixes.patch quota-quota-core-changes-for-quotaon-on-remount-quota-reiserfs-make-reiserfs-handle-quotaon-on-remount.patch ext3-fdatasync-should-skip-metadata-writeout-when-overwriting.patch quota-le_add_cpu-conversion.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html