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| author |   David Howells <dhowells@redhat.com> | 2021-10-21 09:08:54 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2022-01-07 13:41:07 +0000 |
| commit | 1493bf74bcf2434a840eacef60c0f56966faa11a (patch) | |
| tree | 0c3bedae3dc265a28d168121918bc7e4f11f9333 /fs/cachefiles | |
| parent | cachefiles: Add a couple of tracepoints for logging errors (diff) | |
| download | linux-dev-1493bf74bcf2434a840eacef60c0f56966faa11a.tar.xz linux-dev-1493bf74bcf2434a840eacef60c0f56966faa11a.zip | |
cachefiles: Add cache error reporting macro
Add a macro to report a cache I/O error and to tell fscache that the cache
is in trouble.
Also add a pointer to the fscache cache cookie from the cachefiles_cache
struct as we need that to pass to fscache_io_error().
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com
Link: https://lore.kernel.org/r/163819626562.215744.1503690975344731661.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/163906927235.143852.13694625647880837563.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/163967137158.1823006.2065038830569321335.stgit@warthog.procyon.org.uk/ # v3
Link: https://lore.kernel.org/r/164021536053.640689.5306822604644352548.stgit@warthog.procyon.org.uk/ # v4
Diffstat (limited to 'fs/cachefiles')
| -rw-r--r-- | fs/cachefiles/internal.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h index b51146a29aca..b2adcb59b4ce 100644 --- a/fs/cachefiles/internal.h +++ b/fs/cachefiles/internal.h @@ -30,6 +30,7 @@ struct cachefiles_object { * Cache files cache definition */ struct cachefiles_cache { + struct fscache_cache *cache; /* Cache cookie */ struct vfsmount *mnt; /* mountpoint holding the cache */ struct file *cachefilesd; /* manager daemon handle */ const struct cred *cache_cred; /* security override for accessing cache */ @@ -103,6 +104,16 @@ static inline int cachefiles_inject_remove_error(void) return cachefiles_error_injection_state & 2 ? -EIO : 0; } +/* + * Error handling + */ +#define cachefiles_io_error(___cache, FMT, ...) \ +do { \ + pr_err("I/O Error: " FMT"\n", ##__VA_ARGS__); \ + fscache_io_error((___cache)->cache); \ + set_bit(CACHEFILES_DEAD, &(___cache)->flags); \ +} while (0) + /* * Debug tracing |