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authorNicolas Pitre <nico@cam.org>2007-06-30 16:21:52 +0200
committerPierre Ossman <drzeus@drzeus.cx>2007-09-23 20:55:13 +0200
commit2342f3323c9a76367a1d7f9a35525ee3cb3911df (patch)
tree1fdb42702137dfbe0be0c2e1c6777a0c0ddb1bcf /include/linux/mmc
parent55fe77a0a24e05c9aaf1a13550dde5efad8b49f2 (diff)
downloadop-kernel-dev-2342f3323c9a76367a1d7f9a35525ee3cb3911df.zip
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sdio: allow for mmc_claim_host to be aborted
It is sometimes necessary to give up on trying to claim the host lock, especially if that happens in a thread that has to be stopped. While at it, fix the description for mmc_claim_host() which was wrong. Signed-off-by: Nicolas Pitre <npitre@mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'include/linux/mmc')
-rw-r--r--include/linux/mmc/core.h13
1 files changed, 12 insertions, 1 deletions
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index 43a9273..8945da9 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -114,7 +114,18 @@ extern int mmc_wait_for_app_cmd(struct mmc_host *, struct mmc_card *,
extern void mmc_set_data_timeout(struct mmc_data *, const struct mmc_card *);
-extern void mmc_claim_host(struct mmc_host *host);
+extern int __mmc_claim_host(struct mmc_host *host, atomic_t *abort);
extern void mmc_release_host(struct mmc_host *host);
+/**
+ * mmc_claim_host - exclusively claim a host
+ * @host: mmc host to claim
+ *
+ * Claim a host for a set of operations.
+ */
+static inline void mmc_claim_host(struct mmc_host *host)
+{
+ __mmc_claim_host(host, NULL);
+}
+
#endif
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