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42f559ed70
First two patches weren't marked for stable but are dependencies for
laters ones. The rest of patches was marked for stable but most likely
will be backported to 4.5+ only so we need to get them on our own.
An important fix is eea2fb4851e9d ("ovl: proper cleanup of workdir") as
it allows mounting overlayfs with dirty workdir, e.g. after power cut.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
73 lines
2.2 KiB
Diff
73 lines
2.2 KiB
Diff
From 56656e960b555cb98bc414382566dcb59aae99a2 Mon Sep 17 00:00:00 2001
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From: Miklos Szeredi <mszeredi@redhat.com>
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Date: Mon, 21 Mar 2016 17:31:46 +0100
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Subject: [PATCH] ovl: rename is_merge to is_lowest
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The 'is_merge' is an historical naming from when only a single lower layer
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could exist. With the introduction of multiple lower layers the meaning of
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this flag was changed to mean only the "lowest layer" (while all lower
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layers were being merged).
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So now 'is_merge' is inaccurate and hence renaming to 'is_lowest'
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Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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---
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fs/overlayfs/readdir.c | 16 ++++++++--------
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1 file changed, 8 insertions(+), 8 deletions(-)
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--- a/fs/overlayfs/readdir.c
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+++ b/fs/overlayfs/readdir.c
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@@ -36,7 +36,7 @@ struct ovl_dir_cache {
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struct ovl_readdir_data {
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struct dir_context ctx;
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- bool is_merge;
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+ bool is_lowest;
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struct rb_root root;
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struct list_head *list;
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struct list_head middle;
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@@ -139,9 +139,9 @@ static int ovl_cache_entry_add_rb(struct
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return 0;
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}
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-static int ovl_fill_lower(struct ovl_readdir_data *rdd,
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- const char *name, int namelen,
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- loff_t offset, u64 ino, unsigned int d_type)
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+static int ovl_fill_lowest(struct ovl_readdir_data *rdd,
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+ const char *name, int namelen,
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+ loff_t offset, u64 ino, unsigned int d_type)
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{
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struct ovl_cache_entry *p;
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@@ -193,10 +193,10 @@ static int ovl_fill_merge(struct dir_con
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container_of(ctx, struct ovl_readdir_data, ctx);
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rdd->count++;
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- if (!rdd->is_merge)
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+ if (!rdd->is_lowest)
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return ovl_cache_entry_add_rb(rdd, name, namelen, ino, d_type);
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else
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- return ovl_fill_lower(rdd, name, namelen, offset, ino, d_type);
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+ return ovl_fill_lowest(rdd, name, namelen, offset, ino, d_type);
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}
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static int ovl_check_whiteouts(struct dentry *dir, struct ovl_readdir_data *rdd)
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@@ -289,7 +289,7 @@ static int ovl_dir_read_merged(struct de
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.ctx.actor = ovl_fill_merge,
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.list = list,
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.root = RB_ROOT,
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- .is_merge = false,
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+ .is_lowest = false,
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};
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int idx, next;
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@@ -306,7 +306,7 @@ static int ovl_dir_read_merged(struct de
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* allows offsets to be reasonably constant
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*/
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list_add(&rdd.middle, rdd.list);
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- rdd.is_merge = true;
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+ rdd.is_lowest = true;
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err = ovl_dir_read(&realpath, &rdd);
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list_del(&rdd.middle);
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}
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